Home / 198.11-273.23-131.75

Finding the Fourth Proportional to 198.11, 273.23 and 131.75

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Solution

The fourth proportional to 198.11, 273.23 and 131.75 is: 181.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    198.11 : 273.23 = 131.75 : x
  2. Step 2: Convert to fraction form
    198.11/273.23 = 131.75/x
  3. Step 3: Cross multiply
    198.11x = 273.23 × 131.75
  4. Step 4: Simplify right side
    198.11x = 35,997.02
  5. Step 5: Solve for x
    x = 35,997.02/198.11
  6. Step 6: Final answer
    x = 181.71

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.