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Finding the Third Proportional to 128,244 and 275,424

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Solution

The third proportional to 128,244 and 275,424 is: 591,516.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,244 : 275,424 = 275,424 : x
  2. Step 2: Convert to fraction form
    128,244/275,424 = 275,424/x
  3. Step 3: Cross multiply
    128,244x = 275,424 × 275,424
  4. Step 4: Simplify right side
    128,244x = 75,858,379,776
  5. Step 5: Solve for x
    x = 75,858,379,776/128,244
  6. Step 6: Final answer
    x = 591,516.01

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.