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Finding the Third Proportional to 481.57 and 676.16

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Solution

The third proportional to 481.57 and 676.16 is: 949.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    481.57 : 676.16 = 676.16 : x
  2. Step 2: Convert to fraction form
    481.57/676.16 = 676.16/x
  3. Step 3: Cross multiply
    481.57x = 676.16 × 676.16
  4. Step 4: Simplify right side
    481.57x = 457,192.56
  5. Step 5: Solve for x
    x = 457,192.56/481.57
  6. Step 6: Final answer
    x = 949.38

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.