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Finding the Fourth Proportional to 170.29, 255.10 and 112.33

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Solution

The fourth proportional to 170.29, 255.10 and 112.33 is: 168.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    170.29 : 255.10 = 112.33 : x
  2. Step 2: Convert to fraction form
    170.29/255.10 = 112.33/x
  3. Step 3: Cross multiply
    170.29x = 255.10 × 112.33
  4. Step 4: Simplify right side
    170.29x = 28,654.82
  5. Step 5: Solve for x
    x = 28,654.82/170.29
  6. Step 6: Final answer
    x = 168.28

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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.