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Finding the Fourth Proportional to 425,306.41, 637,964.80 and 125,793.05

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Solution

The fourth proportional to 425,306.41, 637,964.80 and 125,793.05 is: 188,691.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,306.41 : 637,964.80 = 125,793.05 : x
  2. Step 2: Convert to fraction form
    425,306.41/637,964.80 = 125,793.05/x
  3. Step 3: Cross multiply
    425,306.41x = 637,964.80 × 125,793.05
  4. Step 4: Simplify right side
    425,306.41x = 80,251,535,187.92
  5. Step 5: Solve for x
    x = 80,251,535,187.92/425,306.41
  6. Step 6: Final answer
    x = 188,691.10

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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.