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Finding the Third Proportional to 121,651.88 and 261,295.88

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Solution

The third proportional to 121,651.88 and 261,295.88 is: 561,237.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,651.88 : 261,295.88 = 261,295.88 : x
  2. Step 2: Convert to fraction form
    121,651.88/261,295.88 = 261,295.88/x
  3. Step 3: Cross multiply
    121,651.88x = 261,295.88 × 261,295.88
  4. Step 4: Simplify right side
    121,651.88x = 68,275,534,292.02
  5. Step 5: Solve for x
    x = 68,275,534,292.02/121,651.88
  6. Step 6: Final answer
    x = 561,237.01

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These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.