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Finding the Third Proportional to 217,699 and 336,250

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Solution

The third proportional to 217,699 and 336,250 is: 519,359.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,699 : 336,250 = 336,250 : x
  2. Step 2: Convert to fraction form
    217,699/336,250 = 336,250/x
  3. Step 3: Cross multiply
    217,699x = 336,250 × 336,250
  4. Step 4: Simplify right side
    217,699x = 113,064,062,500
  5. Step 5: Solve for x
    x = 113,064,062,500/217,699
  6. Step 6: Final answer
    x = 519,359.59

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.