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Finding the Fourth Proportional to 198.59, 296.48 and 167.83

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Solution

The fourth proportional to 198.59, 296.48 and 167.83 is: 250.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    198.59 : 296.48 = 167.83 : x
  2. Step 2: Convert to fraction form
    198.59/296.48 = 167.83/x
  3. Step 3: Cross multiply
    198.59x = 296.48 × 167.83
  4. Step 4: Simplify right side
    198.59x = 49,757.92
  5. Step 5: Solve for x
    x = 49,757.92/198.59
  6. Step 6: Final answer
    x = 250.56

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.