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Finding the Third Proportional to 157,638 and 345,908

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Solution

The third proportional to 157,638 and 345,908 is: 759,032.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,638 : 345,908 = 345,908 : x
  2. Step 2: Convert to fraction form
    157,638/345,908 = 345,908/x
  3. Step 3: Cross multiply
    157,638x = 345,908 × 345,908
  4. Step 4: Simplify right side
    157,638x = 119,652,344,464
  5. Step 5: Solve for x
    x = 119,652,344,464/157,638
  6. Step 6: Final answer
    x = 759,032.37

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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.