No, the table is not proportional.
Proportional means that it has a consistent change in ratio. In this table, 4:5 is the ratio. So, for the table to be proportional, the next numbers would be 8 (mins) and 10 (ft), 12 (mins) and 15 (ft), and so on.
Thus proving that the table given is not proportional.
I hope this helps!
