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Finding the Fourth Proportional to 267.12, 365.22 and 257.04

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Solution

The fourth proportional to 267.12, 365.22 and 257.04 is: 351.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    267.12 : 365.22 = 257.04 : x
  2. Step 2: Convert to fraction form
    267.12/365.22 = 257.04/x
  3. Step 3: Cross multiply
    267.12x = 365.22 × 257.04
  4. Step 4: Simplify right side
    267.12x = 93,876.15
  5. Step 5: Solve for x
    x = 93,876.15/267.12
  6. Step 6: Final answer
    x = 351.44

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.