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Finding the Third Proportional to 55,019 and 120,154

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Solution

The third proportional to 55,019 and 120,154 is: 262,399.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,019 : 120,154 = 120,154 : x
  2. Step 2: Convert to fraction form
    55,019/120,154 = 120,154/x
  3. Step 3: Cross multiply
    55,019x = 120,154 × 120,154
  4. Step 4: Simplify right side
    55,019x = 14,436,983,716
  5. Step 5: Solve for x
    x = 14,436,983,716/55,019
  6. Step 6: Final answer
    x = 262,399.97

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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.