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Finding the Third Proportional to 342.35 and 748.62

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Solution

The third proportional to 342.35 and 748.62 is: 1,636.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    342.35 : 748.62 = 748.62 : x
  2. Step 2: Convert to fraction form
    342.35/748.62 = 748.62/x
  3. Step 3: Cross multiply
    342.35x = 748.62 × 748.62
  4. Step 4: Simplify right side
    342.35x = 560,427.69
  5. Step 5: Solve for x
    x = 560,427.69/342.35
  6. Step 6: Final answer
    x = 1,636.99

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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.