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Finding the Fourth Proportional to 170.79, 255.97 and 93.59

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Solution

The fourth proportional to 170.79, 255.97 and 93.59 is: 140.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    170.79 : 255.97 = 93.59 : x
  2. Step 2: Convert to fraction form
    170.79/255.97 = 93.59/x
  3. Step 3: Cross multiply
    170.79x = 255.97 × 93.59
  4. Step 4: Simplify right side
    170.79x = 23,954.72
  5. Step 5: Solve for x
    x = 23,954.72/170.79
  6. Step 6: Final answer
    x = 140.26

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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.