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Finding the Fourth Proportional to 177.06, 265.04 and 115.28

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Solution

The fourth proportional to 177.06, 265.04 and 115.28 is: 172.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    177.06 : 265.04 = 115.28 : x
  2. Step 2: Convert to fraction form
    177.06/265.04 = 115.28/x
  3. Step 3: Cross multiply
    177.06x = 265.04 × 115.28
  4. Step 4: Simplify right side
    177.06x = 30,553.90
  5. Step 5: Solve for x
    x = 30,553.90/177.06
  6. Step 6: Final answer
    x = 172.56

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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.