Finding the Fourth Proportional to 257,516.20, 386,468.70 and 97,732.36
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Solution
The fourth proportional to 257,516.20, 386,468.70 and 97,732.36 is: 146,672.32
Step by Step Solution
- Step 1: Write the proportion equation
257,516.20 : 386,468.70 = 97,732.36 : x - Step 2: Convert to fraction form
257,516.20/386,468.70 = 97,732.36/x - Step 3: Cross multiply
257,516.20x = 386,468.70 × 97,732.36 - Step 4: Simplify right side
257,516.20x = 37,770,498,117.13 - Step 5: Solve for x
x = 37,770,498,117.13/257,516.20 - Step 6: Final answer
x = 146,672.32
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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.