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Finding the Third Proportional to 300,838 and 451,322

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Solution

The third proportional to 300,838 and 451,322 is: 677,080.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,838 : 451,322 = 451,322 : x
  2. Step 2: Convert to fraction form
    300,838/451,322 = 451,322/x
  3. Step 3: Cross multiply
    300,838x = 451,322 × 451,322
  4. Step 4: Simplify right side
    300,838x = 203,691,547,684
  5. Step 5: Solve for x
    x = 203,691,547,684/300,838
  6. Step 6: Final answer
    x = 677,080.51

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.