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Finding the Fourth Proportional to 176.64, 264.42 and 127.68

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Solution

The fourth proportional to 176.64, 264.42 and 127.68 is: 191.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    176.64 : 264.42 = 127.68 : x
  2. Step 2: Convert to fraction form
    176.64/264.42 = 127.68/x
  3. Step 3: Cross multiply
    176.64x = 264.42 × 127.68
  4. Step 4: Simplify right side
    176.64x = 33,761.15
  5. Step 5: Solve for x
    x = 33,761.15/176.64
  6. Step 6: Final answer
    x = 191.13

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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.