Home / 424,221.28-636,332.10-124,701.88

Finding the Fourth Proportional to 424,221.28, 636,332.10 and 124,701.88

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Solution

The fourth proportional to 424,221.28, 636,332.10 and 124,701.88 is: 187,052.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,221.28 : 636,332.10 = 124,701.88 : x
  2. Step 2: Convert to fraction form
    424,221.28/636,332.10 = 124,701.88/x
  3. Step 3: Cross multiply
    424,221.28x = 636,332.10 × 124,701.88
  4. Step 4: Simplify right side
    424,221.28x = 79,351,809,174.35
  5. Step 5: Solve for x
    x = 79,351,809,174.35/424,221.28
  6. Step 6: Final answer
    x = 187,052.87

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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.