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Finding the Third Proportional to 120,812.50 and 261,536

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Solution

The third proportional to 120,812.50 and 261,536 is: 566,175.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,812.50 : 261,536 = 261,536 : x
  2. Step 2: Convert to fraction form
    120,812.50/261,536 = 261,536/x
  3. Step 3: Cross multiply
    120,812.50x = 261,536 × 261,536
  4. Step 4: Simplify right side
    120,812.50x = 68,401,079,296
  5. Step 5: Solve for x
    x = 68,401,079,296/120,812.50
  6. Step 6: Final answer
    x = 566,175.51

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.