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Finding the Fourth Proportional to 342,711.39, 472,096.67 and 291,560.28

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Solution

The fourth proportional to 342,711.39, 472,096.67 and 291,560.28 is: 401,634.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,711.39 : 472,096.67 = 291,560.28 : x
  2. Step 2: Convert to fraction form
    342,711.39/472,096.67 = 291,560.28/x
  3. Step 3: Cross multiply
    342,711.39x = 472,096.67 × 291,560.28
  4. Step 4: Simplify right side
    342,711.39x = 137,644,635,834.47
  5. Step 5: Solve for x
    x = 137,644,635,834.47/342,711.39
  6. Step 6: Final answer
    x = 401,634.26

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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.