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Finding the Third Proportional to 195.38 and 424.69

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Solution

The third proportional to 195.38 and 424.69 is: 923.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    195.38 : 424.69 = 424.69 : x
  2. Step 2: Convert to fraction form
    195.38/424.69 = 424.69/x
  3. Step 3: Cross multiply
    195.38x = 424.69 × 424.69
  4. Step 4: Simplify right side
    195.38x = 180,359.47
  5. Step 5: Solve for x
    x = 180,359.47/195.38
  6. Step 6: Final answer
    x = 923.15

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.