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Finding the Fourth Proportional to 266,265.96, 399,287.90 and 108,387.24

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Solution

The fourth proportional to 266,265.96, 399,287.90 and 108,387.24 is: 162,535.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,265.96 : 399,287.90 = 108,387.24 : x
  2. Step 2: Convert to fraction form
    266,265.96/399,287.90 = 108,387.24/x
  3. Step 3: Cross multiply
    266,265.96x = 399,287.90 × 108,387.24
  4. Step 4: Simplify right side
    266,265.96x = 43,277,713,446.40
  5. Step 5: Solve for x
    x = 43,277,713,446.40/266,265.96
  6. Step 6: Final answer
    x = 162,535.66

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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.