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Finding the Third Proportional to 212,847.38 and 320,164.88

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Solution

The third proportional to 212,847.38 and 320,164.88 is: 481,591.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,847.38 : 320,164.88 = 320,164.88 : x
  2. Step 2: Convert to fraction form
    212,847.38/320,164.88 = 320,164.88/x
  3. Step 3: Cross multiply
    212,847.38x = 320,164.88 × 320,164.88
  4. Step 4: Simplify right side
    212,847.38x = 102,505,547,183.77
  5. Step 5: Solve for x
    x = 102,505,547,183.77/212,847.38
  6. Step 6: Final answer
    x = 481,591.78

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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.