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Finding the Fourth Proportional to 267,908.70, 401,717.05 and 80,895.90

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Solution

The fourth proportional to 267,908.70, 401,717.05 and 80,895.90 is: 121,299.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,908.70 : 401,717.05 = 80,895.90 : x
  2. Step 2: Convert to fraction form
    267,908.70/401,717.05 = 80,895.90/x
  3. Step 3: Cross multiply
    267,908.70x = 401,717.05 × 80,895.90
  4. Step 4: Simplify right side
    267,908.70x = 32,497,262,305.10
  5. Step 5: Solve for x
    x = 32,497,262,305.10/267,908.70
  6. Step 6: Final answer
    x = 121,299.76

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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.