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Finding the Third Proportional to 300,382 and 419,954

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Solution

The third proportional to 300,382 and 419,954 is: 587,123.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,382 : 419,954 = 419,954 : x
  2. Step 2: Convert to fraction form
    300,382/419,954 = 419,954/x
  3. Step 3: Cross multiply
    300,382x = 419,954 × 419,954
  4. Step 4: Simplify right side
    300,382x = 176,361,362,116
  5. Step 5: Solve for x
    x = 176,361,362,116/300,382
  6. Step 6: Final answer
    x = 587,123.60

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.