Finding the Fourth Proportional to 385,128.97, 577,551.85 and 132,337.69
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Solution
The fourth proportional to 385,128.97, 577,551.85 and 132,337.69 is: 198,457.88
Step by Step Solution
- Step 1: Write the proportion equation
385,128.97 : 577,551.85 = 132,337.69 : x - Step 2: Convert to fraction form
385,128.97/577,551.85 = 132,337.69/x - Step 3: Cross multiply
385,128.97x = 577,551.85 × 132,337.69 - Step 4: Simplify right side
385,128.97x = 76,431,877,684.23 - Step 5: Solve for x
x = 76,431,877,684.23/385,128.97 - Step 6: Final answer
x = 198,457.88
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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.