English to English
1. Having a due proportion, or comparative relation; being in suitable proportion or degree; as, the parts of an edifice are proportional.
2. properly related in size or degree or other measurable characteristics; usually followed by `to'
the punishment ought to be proportional to the crime|earnings relative to production
3. having a constant ratio
4. one of the quantities in a mathematical proportion
5. Any number or quantity in a proportion; as, a mean proportional.