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Finding the Fourth Proportional to 269,364.80, 403,982.40 and 82,377.92

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Solution

The fourth proportional to 269,364.80, 403,982.40 and 82,377.92 is: 123,547.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,364.80 : 403,982.40 = 82,377.92 : x
  2. Step 2: Convert to fraction form
    269,364.80/403,982.40 = 82,377.92/x
  3. Step 3: Cross multiply
    269,364.80x = 403,982.40 × 82,377.92
  4. Step 4: Simplify right side
    269,364.80x = 33,279,229,828.61
  5. Step 5: Solve for x
    x = 33,279,229,828.61/269,364.80
  6. Step 6: Final answer
    x = 123,547.06

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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.