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Finding the Fourth Proportional to 177.57, 265.97 and 108.89

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Solution

The fourth proportional to 177.57, 265.97 and 108.89 is: 163.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    177.57 : 265.97 = 108.89 : x
  2. Step 2: Convert to fraction form
    177.57/265.97 = 108.89/x
  3. Step 3: Cross multiply
    177.57x = 265.97 × 108.89
  4. Step 4: Simplify right side
    177.57x = 28,960.42
  5. Step 5: Solve for x
    x = 28,960.42/177.57
  6. Step 6: Final answer
    x = 163.09

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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.