Home / 442,177.20-663,263.10-126,634.68

Finding the Fourth Proportional to 442,177.20, 663,263.10 and 126,634.68

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Solution

The fourth proportional to 442,177.20, 663,263.10 and 126,634.68 is: 189,951.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,177.20 : 663,263.10 = 126,634.68 : x
  2. Step 2: Convert to fraction form
    442,177.20/663,263.10 = 126,634.68/x
  3. Step 3: Cross multiply
    442,177.20x = 663,263.10 × 126,634.68
  4. Step 4: Simplify right side
    442,177.20x = 83,992,110,424.31
  5. Step 5: Solve for x
    x = 83,992,110,424.31/442,177.20
  6. Step 6: Final answer
    x = 189,951.25

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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.