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Finding the Fourth Proportional to 754.57, 1,132.16 and 267.96

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Solution

The fourth proportional to 754.57, 1,132.16 and 267.96 is: 402.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    754.57 : 1,132.16 = 267.96 : x
  2. Step 2: Convert to fraction form
    754.57/1,132.16 = 267.96/x
  3. Step 3: Cross multiply
    754.57x = 1,132.16 × 267.96
  4. Step 4: Simplify right side
    754.57x = 303,372.25
  5. Step 5: Solve for x
    x = 303,372.25/754.57
  6. Step 6: Final answer
    x = 402.05

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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.