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Finding the Third Proportional to 120,590 and 261,936

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Solution

The third proportional to 120,590 and 261,936 is: 568,956.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,590 : 261,936 = 261,936 : x
  2. Step 2: Convert to fraction form
    120,590/261,936 = 261,936/x
  3. Step 3: Cross multiply
    120,590x = 261,936 × 261,936
  4. Step 4: Simplify right side
    120,590x = 68,610,468,096
  5. Step 5: Solve for x
    x = 68,610,468,096/120,590
  6. Step 6: Final answer
    x = 568,956.53

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.