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Finding the Third Proportional to 157,299 and 339,622

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Solution

The third proportional to 157,299 and 339,622 is: 733,272.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,299 : 339,622 = 339,622 : x
  2. Step 2: Convert to fraction form
    157,299/339,622 = 339,622/x
  3. Step 3: Cross multiply
    157,299x = 339,622 × 339,622
  4. Step 4: Simplify right side
    157,299x = 115,343,102,884
  5. Step 5: Solve for x
    x = 115,343,102,884/157,299
  6. Step 6: Final answer
    x = 733,272.96

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.