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Finding the Third Proportional to 115,285 and 252,440

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Solution

The third proportional to 115,285 and 252,440 is: 552,768.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,285 : 252,440 = 252,440 : x
  2. Step 2: Convert to fraction form
    115,285/252,440 = 252,440/x
  3. Step 3: Cross multiply
    115,285x = 252,440 × 252,440
  4. Step 4: Simplify right side
    115,285x = 63,725,953,600
  5. Step 5: Solve for x
    x = 63,725,953,600/115,285
  6. Step 6: Final answer
    x = 552,768.82

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.