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Finding the Third Proportional to 65,349 and 140,403

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Solution

The third proportional to 65,349 and 140,403 is: 301,657.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,349 : 140,403 = 140,403 : x
  2. Step 2: Convert to fraction form
    65,349/140,403 = 140,403/x
  3. Step 3: Cross multiply
    65,349x = 140,403 × 140,403
  4. Step 4: Simplify right side
    65,349x = 19,713,002,409
  5. Step 5: Solve for x
    x = 19,713,002,409/65,349
  6. Step 6: Final answer
    x = 301,657.29

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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.