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Finding the Third Proportional to 55,200 and 119,143

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Solution

The third proportional to 55,200 and 119,143 is: 257,156.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,200 : 119,143 = 119,143 : x
  2. Step 2: Convert to fraction form
    55,200/119,143 = 119,143/x
  3. Step 3: Cross multiply
    55,200x = 119,143 × 119,143
  4. Step 4: Simplify right side
    55,200x = 14,195,054,449
  5. Step 5: Solve for x
    x = 14,195,054,449/55,200
  6. Step 6: Final answer
    x = 257,156.78

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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.