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Finding the Third Proportional to 120,760 and 265,425

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Solution

The third proportional to 120,760 and 265,425 is: 583,392.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,760 : 265,425 = 265,425 : x
  2. Step 2: Convert to fraction form
    120,760/265,425 = 265,425/x
  3. Step 3: Cross multiply
    120,760x = 265,425 × 265,425
  4. Step 4: Simplify right side
    120,760x = 70,450,430,625
  5. Step 5: Solve for x
    x = 70,450,430,625/120,760
  6. Step 6: Final answer
    x = 583,392.11

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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.