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Finding the Fourth Proportional to 267,153.66, 400,613.04 and 80,121.42

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Solution

The fourth proportional to 267,153.66, 400,613.04 and 80,121.42 is: 120,146.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,153.66 : 400,613.04 = 80,121.42 : x
  2. Step 2: Convert to fraction form
    267,153.66/400,613.04 = 80,121.42/x
  3. Step 3: Cross multiply
    267,153.66x = 400,613.04 × 80,121.42
  4. Step 4: Simplify right side
    267,153.66x = 32,097,685,635.32
  5. Step 5: Solve for x
    x = 32,097,685,635.32/267,153.66
  6. Step 6: Final answer
    x = 120,146.91

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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.