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Finding the Third Proportional to 372.56 and 552.44

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Solution

The third proportional to 372.56 and 552.44 is: 819.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    372.56 : 552.44 = 552.44 : x
  2. Step 2: Convert to fraction form
    372.56/552.44 = 552.44/x
  3. Step 3: Cross multiply
    372.56x = 552.44 × 552.44
  4. Step 4: Simplify right side
    372.56x = 305,187.19
  5. Step 5: Solve for x
    x = 305,187.19/372.56
  6. Step 6: Final answer
    x = 819.16

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Why These Related Problems?

These problems maintain the same ratio (1.48) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.