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Finding the Third Proportional to 100,276.50 and 213,897

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Solution

The third proportional to 100,276.50 and 213,897 is: 456,257.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,276.50 : 213,897 = 213,897 : x
  2. Step 2: Convert to fraction form
    100,276.50/213,897 = 213,897/x
  3. Step 3: Cross multiply
    100,276.50x = 213,897 × 213,897
  4. Step 4: Simplify right side
    100,276.50x = 45,751,926,609
  5. Step 5: Solve for x
    x = 45,751,926,609/100,276.50
  6. Step 6: Final answer
    x = 456,257.71

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Why These Related Problems?

These problems maintain the same ratio (2.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.