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Finding the Third Proportional to 140,453.25 and 309,537.75

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Solution

The third proportional to 140,453.25 and 309,537.75 is: 682,174.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,453.25 : 309,537.75 = 309,537.75 : x
  2. Step 2: Convert to fraction form
    140,453.25/309,537.75 = 309,537.75/x
  3. Step 3: Cross multiply
    140,453.25x = 309,537.75 × 309,537.75
  4. Step 4: Simplify right side
    140,453.25x = 95,813,618,675.06
  5. Step 5: Solve for x
    x = 95,813,618,675.06/140,453.25
  6. Step 6: Final answer
    x = 682,174.45

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.