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Finding the Fourth Proportional to 197.91, 272.98 and 124.27

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Solution

The fourth proportional to 197.91, 272.98 and 124.27 is: 171.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    197.91 : 272.98 = 124.27 : x
  2. Step 2: Convert to fraction form
    197.91/272.98 = 124.27/x
  3. Step 3: Cross multiply
    197.91x = 272.98 × 124.27
  4. Step 4: Simplify right side
    197.91x = 33,923.22
  5. Step 5: Solve for x
    x = 33,923.22/197.91
  6. Step 6: Final answer
    x = 171.41

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