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Finding the Third Proportional to 97 and 197.38

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Solution

The third proportional to 97 and 197.38 is: 401.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    97 : 197.38 = 197.38 : x
  2. Step 2: Convert to fraction form
    97/197.38 = 197.38/x
  3. Step 3: Cross multiply
    97x = 197.38 × 197.38
  4. Step 4: Simplify right side
    97x = 38,956.89
  5. Step 5: Solve for x
    x = 38,956.89/97
  6. Step 6: Final answer
    x = 401.62

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Why These Related Problems?

These problems maintain the same ratio (2.03) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.