Home / 424,225.28-636,338.10-124,705.88

Finding the Fourth Proportional to 424,225.28, 636,338.10 and 124,705.88

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Solution

The fourth proportional to 424,225.28, 636,338.10 and 124,705.88 is: 187,058.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,225.28 : 636,338.10 = 124,705.88 : x
  2. Step 2: Convert to fraction form
    424,225.28/636,338.10 = 124,705.88/x
  3. Step 3: Cross multiply
    424,225.28x = 636,338.10 × 124,705.88
  4. Step 4: Simplify right side
    424,225.28x = 79,355,102,738.03
  5. Step 5: Solve for x
    x = 79,355,102,738.03/424,225.28
  6. Step 6: Final answer
    x = 187,058.87

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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.