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Finding the Third Proportional to 100,610.50 and 209,489

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Solution

The third proportional to 100,610.50 and 209,489 is: 436,193.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,610.50 : 209,489 = 209,489 : x
  2. Step 2: Convert to fraction form
    100,610.50/209,489 = 209,489/x
  3. Step 3: Cross multiply
    100,610.50x = 209,489 × 209,489
  4. Step 4: Simplify right side
    100,610.50x = 43,885,641,121
  5. Step 5: Solve for x
    x = 43,885,641,121/100,610.50
  6. Step 6: Final answer
    x = 436,193.45

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Why These Related Problems?

These problems maintain the same ratio (2.08) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.