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Finding the Third Proportional to 186,859.50 and 280,015.25

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Solution

The third proportional to 186,859.50 and 280,015.25 is: 419,612.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,859.50 : 280,015.25 = 280,015.25 : x
  2. Step 2: Convert to fraction form
    186,859.50/280,015.25 = 280,015.25/x
  3. Step 3: Cross multiply
    186,859.50x = 280,015.25 × 280,015.25
  4. Step 4: Simplify right side
    186,859.50x = 78,408,540,232.56
  5. Step 5: Solve for x
    x = 78,408,540,232.56/186,859.50
  6. Step 6: Final answer
    x = 419,612.28

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.