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Finding the Third Proportional to 55,512 and 119,889

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Solution

The third proportional to 55,512 and 119,889 is: 258,923.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,512 : 119,889 = 119,889 : x
  2. Step 2: Convert to fraction form
    55,512/119,889 = 119,889/x
  3. Step 3: Cross multiply
    55,512x = 119,889 × 119,889
  4. Step 4: Simplify right side
    55,512x = 14,373,372,321
  5. Step 5: Solve for x
    x = 14,373,372,321/55,512
  6. Step 6: Final answer
    x = 258,923.70

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.