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Finding the Third Proportional to 202,110 and 313,828

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Solution

The third proportional to 202,110 and 313,828 is: 487,299.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,110 : 313,828 = 313,828 : x
  2. Step 2: Convert to fraction form
    202,110/313,828 = 313,828/x
  3. Step 3: Cross multiply
    202,110x = 313,828 × 313,828
  4. Step 4: Simplify right side
    202,110x = 98,488,013,584
  5. Step 5: Solve for x
    x = 98,488,013,584/202,110
  6. Step 6: Final answer
    x = 487,299.06

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.