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Finding the Fourth Proportional to 197.12, 295.42 and 94.27

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Solution

The fourth proportional to 197.12, 295.42 and 94.27 is: 141.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    197.12 : 295.42 = 94.27 : x
  2. Step 2: Convert to fraction form
    197.12/295.42 = 94.27/x
  3. Step 3: Cross multiply
    197.12x = 295.42 × 94.27
  4. Step 4: Simplify right side
    197.12x = 27,849.24
  5. Step 5: Solve for x
    x = 27,849.24/197.12
  6. Step 6: Final answer
    x = 141.28

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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.