Home / 438,206.60-656,856.30-238,104.20

Finding the Fourth Proportional to 438,206.60, 656,856.30 and 238,104.20

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Solution

The fourth proportional to 438,206.60, 656,856.30 and 238,104.20 is: 356,909.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,206.60 : 656,856.30 = 238,104.20 : x
  2. Step 2: Convert to fraction form
    438,206.60/656,856.30 = 238,104.20/x
  3. Step 3: Cross multiply
    438,206.60x = 656,856.30 × 238,104.20
  4. Step 4: Simplify right side
    438,206.60x = 156,400,243,826.46
  5. Step 5: Solve for x
    x = 156,400,243,826.46/438,206.60
  6. Step 6: Final answer
    x = 356,909.83

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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.