Finding the Fourth Proportional to 385,283.79, 577,781.91 and 132,492.65
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Solution
The fourth proportional to 385,283.79, 577,781.91 and 132,492.65 is: 198,689.53
Step by Step Solution
- Step 1: Write the proportion equation
385,283.79 : 577,781.91 = 132,492.65 : x - Step 2: Convert to fraction form
385,283.79/577,781.91 = 132,492.65/x - Step 3: Cross multiply
385,283.79x = 577,781.91 × 132,492.65 - Step 4: Simplify right side
385,283.79x = 76,551,853,489.05 - Step 5: Solve for x
x = 76,551,853,489.05/385,283.79 - Step 6: Final answer
x = 198,689.53
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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.