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Finding the Third Proportional to 131,406 and 283,405

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Solution

The third proportional to 131,406 and 283,405 is: 611,223.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,406 : 283,405 = 283,405 : x
  2. Step 2: Convert to fraction form
    131,406/283,405 = 283,405/x
  3. Step 3: Cross multiply
    131,406x = 283,405 × 283,405
  4. Step 4: Simplify right side
    131,406x = 80,318,394,025
  5. Step 5: Solve for x
    x = 80,318,394,025/131,406
  6. Step 6: Final answer
    x = 611,223.19

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.