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Finding the Third Proportional to 100,672.88 and 219,432.38

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Solution

The third proportional to 100,672.88 and 219,432.38 is: 478,287.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,672.88 : 219,432.38 = 219,432.38 : x
  2. Step 2: Convert to fraction form
    100,672.88/219,432.38 = 219,432.38/x
  3. Step 3: Cross multiply
    100,672.88x = 219,432.38 × 219,432.38
  4. Step 4: Simplify right side
    100,672.88x = 48,150,567,198.14
  5. Step 5: Solve for x
    x = 48,150,567,198.14/100,672.88
  6. Step 6: Final answer
    x = 478,287.40

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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.