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Finding the Third Proportional to 90,790.50 and 199,497

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Solution

The third proportional to 90,790.50 and 199,497 is: 438,361.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,790.50 : 199,497 = 199,497 : x
  2. Step 2: Convert to fraction form
    90,790.50/199,497 = 199,497/x
  3. Step 3: Cross multiply
    90,790.50x = 199,497 × 199,497
  4. Step 4: Simplify right side
    90,790.50x = 39,799,053,009
  5. Step 5: Solve for x
    x = 39,799,053,009/90,790.50
  6. Step 6: Final answer
    x = 438,361.43

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.