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Finding the Third Proportional to 219,757.50 and 479,785.50

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Solution

The third proportional to 219,757.50 and 479,785.50 is: 1,047,491.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,757.50 : 479,785.50 = 479,785.50 : x
  2. Step 2: Convert to fraction form
    219,757.50/479,785.50 = 479,785.50/x
  3. Step 3: Cross multiply
    219,757.50x = 479,785.50 × 479,785.50
  4. Step 4: Simplify right side
    219,757.50x = 230,194,126,010.25
  5. Step 5: Solve for x
    x = 230,194,126,010.25/219,757.50
  6. Step 6: Final answer
    x = 1,047,491.56

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.