Home / 266,434.20-399,456.90-108,581.40

Finding the Fourth Proportional to 266,434.20, 399,456.90 and 108,581.40

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Solution

The fourth proportional to 266,434.20, 399,456.90 and 108,581.40 is: 162,792.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,434.20 : 399,456.90 = 108,581.40 : x
  2. Step 2: Convert to fraction form
    266,434.20/399,456.90 = 108,581.40/x
  3. Step 3: Cross multiply
    266,434.20x = 399,456.90 × 108,581.40
  4. Step 4: Simplify right side
    266,434.20x = 43,373,589,441.66
  5. Step 5: Solve for x
    x = 43,373,589,441.66/266,434.20
  6. Step 6: Final answer
    x = 162,792.88

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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.