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Finding the Third Proportional to 179,908 and 394,808

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Solution

The third proportional to 179,908 and 394,808 is: 866,405.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,908 : 394,808 = 394,808 : x
  2. Step 2: Convert to fraction form
    179,908/394,808 = 394,808/x
  3. Step 3: Cross multiply
    179,908x = 394,808 × 394,808
  4. Step 4: Simplify right side
    179,908x = 155,873,356,864
  5. Step 5: Solve for x
    x = 155,873,356,864/179,908
  6. Step 6: Final answer
    x = 866,405.92

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.