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Finding the Third Proportional to 55,257 and 120,635

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Solution

The third proportional to 55,257 and 120,635 is: 263,365.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,257 : 120,635 = 120,635 : x
  2. Step 2: Convert to fraction form
    55,257/120,635 = 120,635/x
  3. Step 3: Cross multiply
    55,257x = 120,635 × 120,635
  4. Step 4: Simplify right side
    55,257x = 14,552,803,225
  5. Step 5: Solve for x
    x = 14,552,803,225/55,257
  6. Step 6: Final answer
    x = 263,365.79

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.