We use a rule of 3 to solve it.
Let's record the data:
253 miles → 8 hours
x miles → 7 hours
Let's solve:
[tex]\mathsf{x = \dfrac{7(253)}{8}}[/tex]
[tex]\mathsf{x = \dfrac{1771}{8}}[/tex]
[tex]\large{\boxed{\mathsf{x = 221,375}}}[/tex]