Finding the Fourth Proportional to 257,934.72, 386,844.17 and 108,343.92
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Solution
The fourth proportional to 257,934.72, 386,844.17 and 108,343.92 is: 162,491.55
Step by Step Solution
- Step 1: Write the proportion equation
257,934.72 : 386,844.17 = 108,343.92 : x - Step 2: Convert to fraction form
257,934.72/386,844.17 = 108,343.92/x - Step 3: Cross multiply
257,934.72x = 386,844.17 × 108,343.92 - Step 4: Simplify right side
257,934.72x = 41,912,213,265.23 - Step 5: Solve for x
x = 41,912,213,265.23/257,934.72 - Step 6: Final answer
x = 162,491.55
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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.