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Finding the Third Proportional to 55,550 and 122,218

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Solution

The third proportional to 55,550 and 122,218 is: 268,897.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,550 : 122,218 = 122,218 : x
  2. Step 2: Convert to fraction form
    55,550/122,218 = 122,218/x
  3. Step 3: Cross multiply
    55,550x = 122,218 × 122,218
  4. Step 4: Simplify right side
    55,550x = 14,937,239,524
  5. Step 5: Solve for x
    x = 14,937,239,524/55,550
  6. Step 6: Final answer
    x = 268,897.20

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.