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Finding the Third Proportional to 197.81 and 462.19

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Solution

The third proportional to 197.81 and 462.19 is: 1,079.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    197.81 : 462.19 = 462.19 : x
  2. Step 2: Convert to fraction form
    197.81/462.19 = 462.19/x
  3. Step 3: Cross multiply
    197.81x = 462.19 × 462.19
  4. Step 4: Simplify right side
    197.81x = 213,617.29
  5. Step 5: Solve for x
    x = 213,617.29/197.81
  6. Step 6: Final answer
    x = 1,079.90

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Why These Related Problems?

These problems maintain the same ratio (2.34) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.