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Finding the Third Proportional to 189,366 and 412,629

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Solution

The third proportional to 189,366 and 412,629 is: 899,119.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,366 : 412,629 = 412,629 : x
  2. Step 2: Convert to fraction form
    189,366/412,629 = 412,629/x
  3. Step 3: Cross multiply
    189,366x = 412,629 × 412,629
  4. Step 4: Simplify right side
    189,366x = 170,262,691,641
  5. Step 5: Solve for x
    x = 170,262,691,641/189,366
  6. Step 6: Final answer
    x = 899,119.65

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.