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Finding the Fourth Proportional to 176.49, 243.56 and 127.44

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Solution

The fourth proportional to 176.49, 243.56 and 127.44 is: 175.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    176.49 : 243.56 = 127.44 : x
  2. Step 2: Convert to fraction form
    176.49/243.56 = 127.44/x
  3. Step 3: Cross multiply
    176.49x = 243.56 × 127.44
  4. Step 4: Simplify right side
    176.49x = 31,039.61
  5. Step 5: Solve for x
    x = 31,039.61/176.49
  6. Step 6: Final answer
    x = 175.87

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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.