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Finding the Third Proportional to 205,708 and 310,753

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Solution

The third proportional to 205,708 and 310,753 is: 469,439.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,708 : 310,753 = 310,753 : x
  2. Step 2: Convert to fraction form
    205,708/310,753 = 310,753/x
  3. Step 3: Cross multiply
    205,708x = 310,753 × 310,753
  4. Step 4: Simplify right side
    205,708x = 96,567,427,009
  5. Step 5: Solve for x
    x = 96,567,427,009/205,708
  6. Step 6: Final answer
    x = 469,439.34

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.