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Finding the Fourth Proportional to 169.27, 233.78 and 127.19

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Solution

The fourth proportional to 169.27, 233.78 and 127.19 is: 175.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    169.27 : 233.78 = 127.19 : x
  2. Step 2: Convert to fraction form
    169.27/233.78 = 127.19/x
  3. Step 3: Cross multiply
    169.27x = 233.78 × 127.19
  4. Step 4: Simplify right side
    169.27x = 29,733.63
  5. Step 5: Solve for x
    x = 29,733.63/169.27
  6. Step 6: Final answer
    x = 175.66

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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.