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Finding the Third Proportional to 131,818 and 284,372

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Solution

The third proportional to 131,818 and 284,372 is: 613,477.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,818 : 284,372 = 284,372 : x
  2. Step 2: Convert to fraction form
    131,818/284,372 = 284,372/x
  3. Step 3: Cross multiply
    131,818x = 284,372 × 284,372
  4. Step 4: Simplify right side
    131,818x = 80,867,434,384
  5. Step 5: Solve for x
    x = 80,867,434,384/131,818
  6. Step 6: Final answer
    x = 613,477.93

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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.