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Finding the Fourth Proportional to 267.48, 369.13 and 157.04

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Solution

The fourth proportional to 267.48, 369.13 and 157.04 is: 216.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    267.48 : 369.13 = 157.04 : x
  2. Step 2: Convert to fraction form
    267.48/369.13 = 157.04/x
  3. Step 3: Cross multiply
    267.48x = 369.13 × 157.04
  4. Step 4: Simplify right side
    267.48x = 57,965.54
  5. Step 5: Solve for x
    x = 57,965.54/267.48
  6. Step 6: Final answer
    x = 216.71

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.