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Finding the Third Proportional to 342.56 and 610.03

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Solution

The third proportional to 342.56 and 610.03 is: 1,086.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    342.56 : 610.03 = 610.03 : x
  2. Step 2: Convert to fraction form
    342.56/610.03 = 610.03/x
  3. Step 3: Cross multiply
    342.56x = 610.03 × 610.03
  4. Step 4: Simplify right side
    342.56x = 372,138.13
  5. Step 5: Solve for x
    x = 372,138.13/342.56
  6. Step 6: Final answer
    x = 1,086.34

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Why These Related Problems?

These problems maintain the same ratio (1.78) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.