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Finding the Fourth Proportional to 266,321.76, 399,484.13 and 88,828.28

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Solution

The fourth proportional to 266,321.76, 399,484.13 and 88,828.28 is: 133,242.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,321.76 : 399,484.13 = 88,828.28 : x
  2. Step 2: Convert to fraction form
    266,321.76/399,484.13 = 88,828.28/x
  3. Step 3: Cross multiply
    266,321.76x = 399,484.13 × 88,828.28
  4. Step 4: Simplify right side
    266,321.76x = 35,485,488,155.20
  5. Step 5: Solve for x
    x = 35,485,488,155.20/266,321.76
  6. Step 6: Final answer
    x = 133,242.92

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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.