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Finding the Third Proportional to 200,776.50 and 322,872.75

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Solution

The third proportional to 200,776.50 and 322,872.75 is: 519,218.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,776.50 : 322,872.75 = 322,872.75 : x
  2. Step 2: Convert to fraction form
    200,776.50/322,872.75 = 322,872.75/x
  3. Step 3: Cross multiply
    200,776.50x = 322,872.75 × 322,872.75
  4. Step 4: Simplify right side
    200,776.50x = 104,246,812,692.56
  5. Step 5: Solve for x
    x = 104,246,812,692.56/200,776.50
  6. Step 6: Final answer
    x = 519,218.20

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Why These Related Problems?

These problems maintain the same ratio (1.61) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.