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Finding the Third Proportional to 200,826 and 310,961.25

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Solution

The third proportional to 200,826 and 310,961.25 is: 481,495.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,826 : 310,961.25 = 310,961.25 : x
  2. Step 2: Convert to fraction form
    200,826/310,961.25 = 310,961.25/x
  3. Step 3: Cross multiply
    200,826x = 310,961.25 × 310,961.25
  4. Step 4: Simplify right side
    200,826x = 96,696,899,001.56
  5. Step 5: Solve for x
    x = 96,696,899,001.56/200,826
  6. Step 6: Final answer
    x = 481,495.92

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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.