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Finding the Third Proportional to 186,755.63 and 280,320.75

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Solution

The third proportional to 186,755.63 and 280,320.75 is: 420,762.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,755.63 : 280,320.75 = 280,320.75 : x
  2. Step 2: Convert to fraction form
    186,755.63/280,320.75 = 280,320.75/x
  3. Step 3: Cross multiply
    186,755.63x = 280,320.75 × 280,320.75
  4. Step 4: Simplify right side
    186,755.63x = 78,579,722,880.56
  5. Step 5: Solve for x
    x = 78,579,722,880.56/186,755.63
  6. Step 6: Final answer
    x = 420,762.28

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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.