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Finding the Third Proportional to 123,515 and 265,755

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Solution

The third proportional to 123,515 and 265,755 is: 571,798.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,515 : 265,755 = 265,755 : x
  2. Step 2: Convert to fraction form
    123,515/265,755 = 265,755/x
  3. Step 3: Cross multiply
    123,515x = 265,755 × 265,755
  4. Step 4: Simplify right side
    123,515x = 70,625,720,025
  5. Step 5: Solve for x
    x = 70,625,720,025/123,515
  6. Step 6: Final answer
    x = 571,798.73

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.