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Finding the Fourth Proportional to 625,414.97, 938,115.54 and 152,100.79

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Solution

The fourth proportional to 625,414.97, 938,115.54 and 152,100.79 is: 228,149.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,414.97 : 938,115.54 = 152,100.79 : x
  2. Step 2: Convert to fraction form
    625,414.97/938,115.54 = 152,100.79/x
  3. Step 3: Cross multiply
    625,414.97x = 938,115.54 × 152,100.79
  4. Step 4: Simplify right side
    625,414.97x = 142,688,112,399.99
  5. Step 5: Solve for x
    x = 142,688,112,399.99/625,414.97
  6. Step 6: Final answer
    x = 228,149.50

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1.5x scale

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.