Finding the Fourth Proportional to 207.87, 286.77 and 124.95
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Solution
The fourth proportional to 207.87, 286.77 and 124.95 is: 172.38
Step by Step Solution
- Step 1: Write the proportion equation
207.87 : 286.77 = 124.95 : x - Step 2: Convert to fraction form
207.87/286.77 = 124.95/x - Step 3: Cross multiply
207.87x = 286.77 × 124.95 - Step 4: Simplify right side
207.87x = 35,831.91 - Step 5: Solve for x
x = 35,831.91/207.87 - Step 6: Final answer
x = 172.38
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.