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Finding the Third Proportional to 151.00 and 331.20

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Solution

The third proportional to 151.00 and 331.20 is: 726.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    151.00 : 331.20 = 331.20 : x
  2. Step 2: Convert to fraction form
    151.00/331.20 = 331.20/x
  3. Step 3: Cross multiply
    151.00x = 331.20 × 331.20
  4. Step 4: Simplify right side
    151.00x = 109,692.28
  5. Step 5: Solve for x
    x = 109,692.28/151.00
  6. Step 6: Final answer
    x = 726.42

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.