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Finding the Fourth Proportional to 267,909.44, 401,864.15 and 80,920.94

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Solution

The fourth proportional to 267,909.44, 401,864.15 and 80,920.94 is: 121,381.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,909.44 : 401,864.15 = 80,920.94 : x
  2. Step 2: Convert to fraction form
    267,909.44/401,864.15 = 80,920.94/x
  3. Step 3: Cross multiply
    267,909.44x = 401,864.15 × 80,920.94
  4. Step 4: Simplify right side
    267,909.44x = 32,519,222,356.38
  5. Step 5: Solve for x
    x = 32,519,222,356.38/267,909.44
  6. Step 6: Final answer
    x = 121,381.40

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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.