Finding the Fourth Proportional to 487.97, 731.71 and 163.22
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Solution
The fourth proportional to 487.97, 731.71 and 163.22 is: 244.75
Step by Step Solution
- Step 1: Write the proportion equation
487.97 : 731.71 = 163.22 : x - Step 2: Convert to fraction form
487.97/731.71 = 163.22/x - Step 3: Cross multiply
487.97x = 731.71 × 163.22 - Step 4: Simplify right side
487.97x = 119,431.13 - Step 5: Solve for x
x = 119,431.13/487.97 - Step 6: Final answer
x = 244.75
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.