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Finding the Fourth Proportional to 170.66, 255.59 and 132.05

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Solution

The fourth proportional to 170.66, 255.59 and 132.05 is: 197.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    170.66 : 255.59 = 132.05 : x
  2. Step 2: Convert to fraction form
    170.66/255.59 = 132.05/x
  3. Step 3: Cross multiply
    170.66x = 255.59 × 132.05
  4. Step 4: Simplify right side
    170.66x = 33,750.00
  5. Step 5: Solve for x
    x = 33,750.00/170.66
  6. Step 6: Final answer
    x = 197.76

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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.