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Finding the Fourth Proportional to 176.79, 244.31 and 127.92

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Solution

The fourth proportional to 176.79, 244.31 and 127.92 is: 176.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    176.79 : 244.31 = 127.92 : x
  2. Step 2: Convert to fraction form
    176.79/244.31 = 127.92/x
  3. Step 3: Cross multiply
    176.79x = 244.31 × 127.92
  4. Step 4: Simplify right side
    176.79x = 31,251.50
  5. Step 5: Solve for x
    x = 31,251.50/176.79
  6. Step 6: Final answer
    x = 176.77

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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.