Finding the Fourth Proportional to 317,921.76, 438,732.27 and 174,691.08
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Solution
The fourth proportional to 317,921.76, 438,732.27 and 174,691.08 is: 241,073.82
Step by Step Solution
- Step 1: Write the proportion equation
317,921.76 : 438,732.27 = 174,691.08 : x - Step 2: Convert to fraction form
317,921.76/438,732.27 = 174,691.08/x - Step 3: Cross multiply
317,921.76x = 438,732.27 × 174,691.08 - Step 4: Simplify right side
317,921.76x = 76,642,614,077.15 - Step 5: Solve for x
x = 76,642,614,077.15/317,921.76 - Step 6: Final answer
x = 241,073.82
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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.