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Finding the Fourth Proportional to 198.84, 273.80 and 173.94

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Solution

The fourth proportional to 198.84, 273.80 and 173.94 is: 239.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    198.84 : 273.80 = 173.94 : x
  2. Step 2: Convert to fraction form
    198.84/273.80 = 173.94/x
  3. Step 3: Cross multiply
    198.84x = 273.80 × 173.94
  4. Step 4: Simplify right side
    198.84x = 47,624.77
  5. Step 5: Solve for x
    x = 47,624.77/198.84
  6. Step 6: Final answer
    x = 239.51

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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.