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Finding the Fourth Proportional to 169.41, 233.71 and 107.26

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Solution

The fourth proportional to 169.41, 233.71 and 107.26 is: 147.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    169.41 : 233.71 = 107.26 : x
  2. Step 2: Convert to fraction form
    169.41/233.71 = 107.26/x
  3. Step 3: Cross multiply
    169.41x = 233.71 × 107.26
  4. Step 4: Simplify right side
    169.41x = 25,067.73
  5. Step 5: Solve for x
    x = 25,067.73/169.41
  6. Step 6: Final answer
    x = 147.97

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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.