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Finding the Third Proportional to 121,030.50 and 255,912.75

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Solution

The third proportional to 121,030.50 and 255,912.75 is: 541,114.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,030.50 : 255,912.75 = 255,912.75 : x
  2. Step 2: Convert to fraction form
    121,030.50/255,912.75 = 255,912.75/x
  3. Step 3: Cross multiply
    121,030.50x = 255,912.75 × 255,912.75
  4. Step 4: Simplify right side
    121,030.50x = 65,491,335,612.56
  5. Step 5: Solve for x
    x = 65,491,335,612.56/121,030.50
  6. Step 6: Final answer
    x = 541,114.31

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Why These Related Problems?

These problems maintain the same ratio (2.11) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.