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Finding the Third Proportional to 259,377 and 396,937.50

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Solution

The third proportional to 259,377 and 396,937.50 is: 607,453.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,377 : 396,937.50 = 396,937.50 : x
  2. Step 2: Convert to fraction form
    259,377/396,937.50 = 396,937.50/x
  3. Step 3: Cross multiply
    259,377x = 396,937.50 × 396,937.50
  4. Step 4: Simplify right side
    259,377x = 157,559,378,906.25
  5. Step 5: Solve for x
    x = 157,559,378,906.25/259,377
  6. Step 6: Final answer
    x = 607,453.16

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.