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Finding the Fourth Proportional to 266,338.26, 399,508.86 and 88,844.76

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Solution

The fourth proportional to 266,338.26, 399,508.86 and 88,844.76 is: 133,267.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,338.26 : 399,508.86 = 88,844.76 : x
  2. Step 2: Convert to fraction form
    266,338.26/399,508.86 = 88,844.76/x
  3. Step 3: Cross multiply
    266,338.26x = 399,508.86 × 88,844.76
  4. Step 4: Simplify right side
    266,338.26x = 35,494,268,784.57
  5. Step 5: Solve for x
    x = 35,494,268,784.57/266,338.26
  6. Step 6: Final answer
    x = 133,267.63

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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.