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Finding the Fourth Proportional to 269,766.60, 404,649.80 and 80,226.20

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Solution

The fourth proportional to 269,766.60, 404,649.80 and 80,226.20 is: 120,339.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,766.60 : 404,649.80 = 80,226.20 : x
  2. Step 2: Convert to fraction form
    269,766.60/404,649.80 = 80,226.20/x
  3. Step 3: Cross multiply
    269,766.60x = 404,649.80 × 80,226.20
  4. Step 4: Simplify right side
    269,766.60x = 32,463,513,360.38
  5. Step 5: Solve for x
    x = 32,463,513,360.38/269,766.60
  6. Step 6: Final answer
    x = 120,339.26

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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.