proportional proportional /prəˈpɔrʃənəl/

adjective

1. () Properly related in size, degree or other measurable characteristics; usually followed by 'to'  ( relative , proportional )
   properly related in size, degree or other measurable characteristics; usually followed by 'to'
    The punishment ought to be proportional to the crime
   the punishment ought to be proportional to the crime
    Earnings relative to production
   earnings relative to production
   
2. Having a constant ratio  ( proportional )
   having a constant ratio
   

noun

1. One of the quantities in a mathematical proportion  ( proportional )
   one of the quantities in a mathematical proportion