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Finding the Fourth Proportional to 269,481.30, 404,279.55 and 82,511.70

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Solution

The fourth proportional to 269,481.30, 404,279.55 and 82,511.70 is: 123,785.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,481.30 : 404,279.55 = 82,511.70 : x
  2. Step 2: Convert to fraction form
    269,481.30/404,279.55 = 82,511.70/x
  3. Step 3: Cross multiply
    269,481.30x = 404,279.55 × 82,511.70
  4. Step 4: Simplify right side
    269,481.30x = 33,357,792,945.74
  5. Step 5: Solve for x
    x = 33,357,792,945.74/269,481.30
  6. Step 6: Final answer
    x = 123,785.19

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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.