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Finding the Third Proportional to 221,000.50 and 339,891

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Solution

The third proportional to 221,000.50 and 339,891 is: 522,740.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,000.50 : 339,891 = 339,891 : x
  2. Step 2: Convert to fraction form
    221,000.50/339,891 = 339,891/x
  3. Step 3: Cross multiply
    221,000.50x = 339,891 × 339,891
  4. Step 4: Simplify right side
    221,000.50x = 115,525,891,881
  5. Step 5: Solve for x
    x = 115,525,891,881/221,000.50
  6. Step 6: Final answer
    x = 522,740.41

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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.