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Finding the Fourth Proportional to 197.92, 273.23 and 124.31

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Solution

The fourth proportional to 197.92, 273.23 and 124.31 is: 171.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    197.92 : 273.23 = 124.31 : x
  2. Step 2: Convert to fraction form
    197.92/273.23 = 124.31/x
  3. Step 3: Cross multiply
    197.92x = 273.23 × 124.31
  4. Step 4: Simplify right side
    197.92x = 33,966.22
  5. Step 5: Solve for x
    x = 33,966.22/197.92
  6. Step 6: Final answer
    x = 171.61

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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.