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Finding the Fourth Proportional to 170.60, 255.49 and 93.45

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Solution

The fourth proportional to 170.60, 255.49 and 93.45 is: 139.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    170.60 : 255.49 = 93.45 : x
  2. Step 2: Convert to fraction form
    170.60/255.49 = 93.45/x
  3. Step 3: Cross multiply
    170.60x = 255.49 × 93.45
  4. Step 4: Simplify right side
    170.60x = 23,873.80
  5. Step 5: Solve for x
    x = 23,873.80/170.60
  6. Step 6: Final answer
    x = 139.94

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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.