Finding the Fourth Proportional to 385,663.76, 532,358.84 and 232,708.40
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Solution
The fourth proportional to 385,663.76, 532,358.84 and 232,708.40 is: 321,223.79
Step by Step Solution
- Step 1: Write the proportion equation
385,663.76 : 532,358.84 = 232,708.40 : x - Step 2: Convert to fraction form
385,663.76/532,358.84 = 232,708.40/x - Step 3: Cross multiply
385,663.76x = 532,358.84 × 232,708.40 - Step 4: Simplify right side
385,663.76x = 123,884,373,882.26 - Step 5: Solve for x
x = 123,884,373,882.26/385,663.76 - Step 6: Final answer
x = 321,223.79
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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.