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Finding the Third Proportional to 221,040 and 339,950

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Solution

The third proportional to 221,040 and 339,950 is: 522,828.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,040 : 339,950 = 339,950 : x
  2. Step 2: Convert to fraction form
    221,040/339,950 = 339,950/x
  3. Step 3: Cross multiply
    221,040x = 339,950 × 339,950
  4. Step 4: Simplify right side
    221,040x = 115,566,002,500
  5. Step 5: Solve for x
    x = 115,566,002,500/221,040
  6. Step 6: Final answer
    x = 522,828.46

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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.