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Finding the Fourth Proportional to 197.32, 273.94 and 191.38

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Solution

The fourth proportional to 197.32, 273.94 and 191.38 is: 265.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    197.32 : 273.94 = 191.38 : x
  2. Step 2: Convert to fraction form
    197.32/273.94 = 191.38/x
  3. Step 3: Cross multiply
    197.32x = 273.94 × 191.38
  4. Step 4: Simplify right side
    197.32x = 52,426.64
  5. Step 5: Solve for x
    x = 52,426.64/197.32
  6. Step 6: Final answer
    x = 265.69

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.