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Finding the Third Proportional to 120,759 and 262,263

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Solution

The third proportional to 120,759 and 262,263 is: 569,579.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,759 : 262,263 = 262,263 : x
  2. Step 2: Convert to fraction form
    120,759/262,263 = 262,263/x
  3. Step 3: Cross multiply
    120,759x = 262,263 × 262,263
  4. Step 4: Simplify right side
    120,759x = 68,781,881,169
  5. Step 5: Solve for x
    x = 68,781,881,169/120,759
  6. Step 6: Final answer
    x = 569,579.75

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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.