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Finding the Third Proportional to 334.13 and 372.09

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Solution

The third proportional to 334.13 and 372.09 is: 414.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    334.13 : 372.09 = 372.09 : x
  2. Step 2: Convert to fraction form
    334.13/372.09 = 372.09/x
  3. Step 3: Cross multiply
    334.13x = 372.09 × 372.09
  4. Step 4: Simplify right side
    334.13x = 138,453.76
  5. Step 5: Solve for x
    x = 138,453.76/334.13
  6. Step 6: Final answer
    x = 414.38

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Why These Related Problems?

These problems maintain the same ratio (1.11) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.