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Finding the Fourth Proportional to 269,288.20, 403,932.30 and 82,299.40

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Solution

The fourth proportional to 269,288.20, 403,932.30 and 82,299.40 is: 123,449.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,288.20 : 403,932.30 = 82,299.40 : x
  2. Step 2: Convert to fraction form
    269,288.20/403,932.30 = 82,299.40/x
  3. Step 3: Cross multiply
    269,288.20x = 403,932.30 × 82,299.40
  4. Step 4: Simplify right side
    269,288.20x = 33,243,385,930.62
  5. Step 5: Solve for x
    x = 33,243,385,930.62/269,288.20
  6. Step 6: Final answer
    x = 123,449.10

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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.