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Finding the Fourth Proportional to 269,781.48, 404,671.95 and 80,241.09

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Solution

The fourth proportional to 269,781.48, 404,671.95 and 80,241.09 is: 120,361.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,781.48 : 404,671.95 = 80,241.09 : x
  2. Step 2: Convert to fraction form
    269,781.48/404,671.95 = 80,241.09/x
  3. Step 3: Cross multiply
    269,781.48x = 404,671.95 × 80,241.09
  4. Step 4: Simplify right side
    269,781.48x = 32,471,318,360.43
  5. Step 5: Solve for x
    x = 32,471,318,360.43/269,781.48
  6. Step 6: Final answer
    x = 120,361.55

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1.5x scale

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.