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Finding the Third Proportional to 55,122 and 119,400

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Solution

The third proportional to 55,122 and 119,400 is: 258,632.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,122 : 119,400 = 119,400 : x
  2. Step 2: Convert to fraction form
    55,122/119,400 = 119,400/x
  3. Step 3: Cross multiply
    55,122x = 119,400 × 119,400
  4. Step 4: Simplify right side
    55,122x = 14,256,360,000
  5. Step 5: Solve for x
    x = 14,256,360,000/55,122
  6. Step 6: Final answer
    x = 258,632.85

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.