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Finding the Third Proportional to 121,740 and 265,626

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Solution

The third proportional to 121,740 and 265,626 is: 579,572.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,740 : 265,626 = 265,626 : x
  2. Step 2: Convert to fraction form
    121,740/265,626 = 265,626/x
  3. Step 3: Cross multiply
    121,740x = 265,626 × 265,626
  4. Step 4: Simplify right side
    121,740x = 70,557,171,876
  5. Step 5: Solve for x
    x = 70,557,171,876/121,740
  6. Step 6: Final answer
    x = 579,572.63

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.