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Finding the Fourth Proportional to 197.22, 295.73 and 67.17

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Solution

The fourth proportional to 197.22, 295.73 and 67.17 is: 100.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    197.22 : 295.73 = 67.17 : x
  2. Step 2: Convert to fraction form
    197.22/295.73 = 67.17/x
  3. Step 3: Cross multiply
    197.22x = 295.73 × 67.17
  4. Step 4: Simplify right side
    197.22x = 19,863.92
  5. Step 5: Solve for x
    x = 19,863.92/197.22
  6. Step 6: Final answer
    x = 100.72

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.