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Finding the Third Proportional to 155,976.75 and 319,331.25

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Solution

The third proportional to 155,976.75 and 319,331.25 is: 653,766.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,976.75 : 319,331.25 = 319,331.25 : x
  2. Step 2: Convert to fraction form
    155,976.75/319,331.25 = 319,331.25/x
  3. Step 3: Cross multiply
    155,976.75x = 319,331.25 × 319,331.25
  4. Step 4: Simplify right side
    155,976.75x = 101,972,447,226.56
  5. Step 5: Solve for x
    x = 101,972,447,226.56/155,976.75
  6. Step 6: Final answer
    x = 653,766.97

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Why These Related Problems?

These problems maintain the same ratio (2.05) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.