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Finding the Third Proportional to 129,193.50 and 274,024.50

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Solution

The third proportional to 129,193.50 and 274,024.50 is: 581,216.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,193.50 : 274,024.50 = 274,024.50 : x
  2. Step 2: Convert to fraction form
    129,193.50/274,024.50 = 274,024.50/x
  3. Step 3: Cross multiply
    129,193.50x = 274,024.50 × 274,024.50
  4. Step 4: Simplify right side
    129,193.50x = 75,089,426,600.25
  5. Step 5: Solve for x
    x = 75,089,426,600.25/129,193.50
  6. Step 6: Final answer
    x = 581,216.75

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Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.