Final answer:
To find how long it will take for John to drive 300 miles, we can set up a proportion using the ratio of distance to time. It will take John 6 hours to drive 300 miles.
Step-by-step explanation:
To find how long it will take for John to drive 300 miles, we can set up a proportion using the ratio of distance to time. Since John can drive 200 miles in 4 hours, we can set up the proportion as:
200 miles / 4 hours = 300 miles / x hours
Now, we can cross multiply and solve for x:
200 * x = 300 * 4
x = (300 * 4) / 200
x = 6 hours
So, it will take John 6 hours to drive 300 miles.