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Finding the Fourth Proportional to 269,939.60, 404,928.60 and 82,950.80

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Solution

The fourth proportional to 269,939.60, 404,928.60 and 82,950.80 is: 124,432.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,939.60 : 404,928.60 = 82,950.80 : x
  2. Step 2: Convert to fraction form
    269,939.60/404,928.60 = 82,950.80/x
  3. Step 3: Cross multiply
    269,939.60x = 404,928.60 × 82,950.80
  4. Step 4: Simplify right side
    269,939.60x = 33,589,151,312.88
  5. Step 5: Solve for x
    x = 33,589,151,312.88/269,939.60
  6. Step 6: Final answer
    x = 124,432.10

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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.