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Finding the Third Proportional to 160.50 and 387.25

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Solution

The third proportional to 160.50 and 387.25 is: 934.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    160.50 : 387.25 = 387.25 : x
  2. Step 2: Convert to fraction form
    160.50/387.25 = 387.25/x
  3. Step 3: Cross multiply
    160.50x = 387.25 × 387.25
  4. Step 4: Simplify right side
    160.50x = 149,962.56
  5. Step 5: Solve for x
    x = 149,962.56/160.50
  6. Step 6: Final answer
    x = 934.35

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Why These Related Problems?

These problems maintain the same ratio (2.41) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.