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Finding the Fourth Proportional to 177.62, 244.81 and 127.76

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Solution

The fourth proportional to 177.62, 244.81 and 127.76 is: 176.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    177.62 : 244.81 = 127.76 : x
  2. Step 2: Convert to fraction form
    177.62/244.81 = 127.76/x
  3. Step 3: Cross multiply
    177.62x = 244.81 × 127.76
  4. Step 4: Simplify right side
    177.62x = 31,276.93
  5. Step 5: Solve for x
    x = 31,276.93/177.62
  6. Step 6: Final answer
    x = 176.09

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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.