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Finding the Third Proportional to 220,858 and 335,392

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Solution

The third proportional to 220,858 and 335,392 is: 509,321.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,858 : 335,392 = 335,392 : x
  2. Step 2: Convert to fraction form
    220,858/335,392 = 335,392/x
  3. Step 3: Cross multiply
    220,858x = 335,392 × 335,392
  4. Step 4: Simplify right side
    220,858x = 112,487,793,664
  5. Step 5: Solve for x
    x = 112,487,793,664/220,858
  6. Step 6: Final answer
    x = 509,321.80

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Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.