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Finding the Fourth Proportional to 132.83, 199.33 and 131.75

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Solution

The fourth proportional to 132.83, 199.33 and 131.75 is: 197.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    132.83 : 199.33 = 131.75 : x
  2. Step 2: Convert to fraction form
    132.83/199.33 = 131.75/x
  3. Step 3: Cross multiply
    132.83x = 199.33 × 131.75
  4. Step 4: Simplify right side
    132.83x = 26,261.73
  5. Step 5: Solve for x
    x = 26,261.73/132.83
  6. Step 6: Final answer
    x = 197.71

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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.