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Finding the Fourth Proportional to 267,756.12, 401,634.72 and 80,767.80

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Solution

The fourth proportional to 267,756.12, 401,634.72 and 80,767.80 is: 121,151.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,756.12 : 401,634.72 = 80,767.80 : x
  2. Step 2: Convert to fraction form
    267,756.12/401,634.72 = 80,767.80/x
  3. Step 3: Cross multiply
    267,756.12x = 401,634.72 × 80,767.80
  4. Step 4: Simplify right side
    267,756.12x = 32,439,152,738.02
  5. Step 5: Solve for x
    x = 32,439,152,738.02/267,756.12
  6. Step 6: Final answer
    x = 121,151.86

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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.