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Finding the Fourth Proportional to 177.14, 264.24 and 161.42

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Solution

The fourth proportional to 177.14, 264.24 and 161.42 is: 240.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    177.14 : 264.24 = 161.42 : x
  2. Step 2: Convert to fraction form
    177.14/264.24 = 161.42/x
  3. Step 3: Cross multiply
    177.14x = 264.24 × 161.42
  4. Step 4: Simplify right side
    177.14x = 42,652.30
  5. Step 5: Solve for x
    x = 42,652.30/177.14
  6. Step 6: Final answer
    x = 240.78

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.