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Finding the Third Proportional to 167.48 and 387.49

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Solution

The third proportional to 167.48 and 387.49 is: 896.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    167.48 : 387.49 = 387.49 : x
  2. Step 2: Convert to fraction form
    167.48/387.49 = 387.49/x
  3. Step 3: Cross multiply
    167.48x = 387.49 × 387.49
  4. Step 4: Simplify right side
    167.48x = 150,150.20
  5. Step 5: Solve for x
    x = 150,150.20/167.48
  6. Step 6: Final answer
    x = 896.50

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Why These Related Problems?

These problems maintain the same ratio (2.31) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.