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Finding the Fourth Proportional to 398,350.38, 597,919.23 and 211,361.88

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Solution

The fourth proportional to 398,350.38, 597,919.23 and 211,361.88 is: 317,251.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,350.38 : 597,919.23 = 211,361.88 : x
  2. Step 2: Convert to fraction form
    398,350.38/597,919.23 = 211,361.88/x
  3. Step 3: Cross multiply
    398,350.38x = 597,919.23 × 211,361.88
  4. Step 4: Simplify right side
    398,350.38x = 126,377,332,540.95
  5. Step 5: Solve for x
    x = 126,377,332,540.95/398,350.38
  6. Step 6: Final answer
    x = 317,251.69

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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.