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Finding the Fourth Proportional to 170.92, 255.92 and 141.94

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Solution

The fourth proportional to 170.92, 255.92 and 141.94 is: 212.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    170.92 : 255.92 = 141.94 : x
  2. Step 2: Convert to fraction form
    170.92/255.92 = 141.94/x
  3. Step 3: Cross multiply
    170.92x = 255.92 × 141.94
  4. Step 4: Simplify right side
    170.92x = 36,324.01
  5. Step 5: Solve for x
    x = 36,324.01/170.92
  6. Step 6: Final answer
    x = 212.52

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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.