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Finding the Fourth Proportional to 266,993.28, 400,489.92 and 89,449.92

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Solution

The fourth proportional to 266,993.28, 400,489.92 and 89,449.92 is: 134,174.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,993.28 : 400,489.92 = 89,449.92 : x
  2. Step 2: Convert to fraction form
    266,993.28/400,489.92 = 89,449.92/x
  3. Step 3: Cross multiply
    266,993.28x = 400,489.92 × 89,449.92
  4. Step 4: Simplify right side
    266,993.28x = 35,823,791,304.81
  5. Step 5: Solve for x
    x = 35,823,791,304.81/266,993.28
  6. Step 6: Final answer
    x = 134,174.88

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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.