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Finding the Fourth Proportional to 197.52, 294.81 and 171.92

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Solution

The fourth proportional to 197.52, 294.81 and 171.92 is: 256.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    197.52 : 294.81 = 171.92 : x
  2. Step 2: Convert to fraction form
    197.52/294.81 = 171.92/x
  3. Step 3: Cross multiply
    197.52x = 294.81 × 171.92
  4. Step 4: Simplify right side
    197.52x = 50,683.74
  5. Step 5: Solve for x
    x = 50,683.74/197.52
  6. Step 6: Final answer
    x = 256.60

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.