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Finding the Fourth Proportional to 197.15, 271.44 and 150.38

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Solution

The fourth proportional to 197.15, 271.44 and 150.38 is: 207.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    197.15 : 271.44 = 150.38 : x
  2. Step 2: Convert to fraction form
    197.15/271.44 = 150.38/x
  3. Step 3: Cross multiply
    197.15x = 271.44 × 150.38
  4. Step 4: Simplify right side
    197.15x = 40,817.79
  5. Step 5: Solve for x
    x = 40,817.79/197.15
  6. Step 6: Final answer
    x = 207.04

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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.