It takes Julian 1/2 hour to walk 2 miles. He decides to start working in his spare time, but because he wants to make sure he has enough time to go a desired distance he created the data table. At which ratio does the constant of proportionality appear?

(1/4, 1)
(4, 1)
(1, 4)
(1, 1/4)

The constant of proportionality appears at the ratio (1/4, 1).