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Finding the Third Proportional to 218,908 and 471,992

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Solution

The third proportional to 218,908 and 471,992 is: 1,017,671.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,908 : 471,992 = 471,992 : x
  2. Step 2: Convert to fraction form
    218,908/471,992 = 471,992/x
  3. Step 3: Cross multiply
    218,908x = 471,992 × 471,992
  4. Step 4: Simplify right side
    218,908x = 222,776,448,064
  5. Step 5: Solve for x
    x = 222,776,448,064/218,908
  6. Step 6: Final answer
    x = 1,017,671.57

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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.