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Finding the Fourth Proportional to 417,863.18, 626,839.32 and 133,454.36

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Solution

The fourth proportional to 417,863.18, 626,839.32 and 133,454.36 is: 200,195.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    417,863.18 : 626,839.32 = 133,454.36 : x
  2. Step 2: Convert to fraction form
    417,863.18/626,839.32 = 133,454.36/x
  3. Step 3: Cross multiply
    417,863.18x = 626,839.32 × 133,454.36
  4. Step 4: Simplify right side
    417,863.18x = 83,654,440,273.44
  5. Step 5: Solve for x
    x = 83,654,440,273.44/417,863.18
  6. Step 6: Final answer
    x = 200,195.77

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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.