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Finding the Third Proportional to 181,278 and 339,714

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Solution

The third proportional to 181,278 and 339,714 is: 636,622.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,278 : 339,714 = 339,714 : x
  2. Step 2: Convert to fraction form
    181,278/339,714 = 339,714/x
  3. Step 3: Cross multiply
    181,278x = 339,714 × 339,714
  4. Step 4: Simplify right side
    181,278x = 115,405,601,796
  5. Step 5: Solve for x
    x = 115,405,601,796/181,278
  6. Step 6: Final answer
    x = 636,622.21

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Why These Related Problems?

These problems maintain the same ratio (1.87) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.