From Longman Dictionary of Contemporary Englishproportionalpro‧por‧tion‧al /prəˈpɔːʃənəl $ -ˈpɔːr-/ AWL adjective DEPEND/IT DEPENDSsomething that is proportional to something else is in the correct or most suitable relationship to it in size, amount, importance etc opp disproportionateproportional to The punishment should be proportional to the crime. The fee charged by the realtor is directly proportional to the price of the property. a proportional increase in costs —proportionally adverb

Examples from the Corpus

proportional• The intensity of color is expected to be proportional to the amount of analyte.• Treatment plant cost is proportional to the amount of flexibility incorporated into its design basis.• The usefulness of most Web sites is directly proportional to the benefits it offers to the people who visit it.• The weights are modified by an amount proportional to the first derivative of the error with respect to the weight.• The theorem states that the posterior probability is proportional to the prior probability multiplied by the likelihood.directly proportional• The usefulness of most Web sites is directly proportional to the benefits it offers to the people who visit it.• Again, the increase is not directly proportional to the blocking factor.• The number of interconnects in a neural network is directly proportional to the complexity of the model that can be implemented.• This luminescence is measured and is directly proportional to the number of trapped electrons, and thus to the total radiation dose.• Hence a current flows; the current is directly proportional to the PO2 in the sample. 25.• The voltage induced in the pickup coil by this waveform is directly proportional to the rate of change of magnetic induction.From Longman Business Dictionaryproportionalpro‧por‧tio‧nal /prəˈpɔːʃənəl-ɔːr-/ (also proportionate) /prəˈpɔːʃənət-ɔːr-/ adjective something that is proportional to something else is related to it in terms of size, amount, importance etcThe fee charged by the realtor is directly proportional to the price of the property.