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Finding the Third Proportional to 168.38 and 358.75

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Solution

The third proportional to 168.38 and 358.75 is: 764.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    168.38 : 358.75 = 358.75 : x
  2. Step 2: Convert to fraction form
    168.38/358.75 = 358.75/x
  3. Step 3: Cross multiply
    168.38x = 358.75 × 358.75
  4. Step 4: Simplify right side
    168.38x = 128,701.56
  5. Step 5: Solve for x
    x = 128,701.56/168.38
  6. Step 6: Final answer
    x = 764.37

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Why These Related Problems?

These problems maintain the same ratio (2.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.