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Finding the Third Proportional to 119,903 and 258,505

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Solution

The third proportional to 119,903 and 258,505 is: 557,324.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,903 : 258,505 = 258,505 : x
  2. Step 2: Convert to fraction form
    119,903/258,505 = 258,505/x
  3. Step 3: Cross multiply
    119,903x = 258,505 × 258,505
  4. Step 4: Simplify right side
    119,903x = 66,824,835,025
  5. Step 5: Solve for x
    x = 66,824,835,025/119,903
  6. Step 6: Final answer
    x = 557,324.13

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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.