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Finding the Third Proportional to 120,124 and 188,439

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Solution

The third proportional to 120,124 and 188,439 is: 295,605.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,124 : 188,439 = 188,439 : x
  2. Step 2: Convert to fraction form
    120,124/188,439 = 188,439/x
  3. Step 3: Cross multiply
    120,124x = 188,439 × 188,439
  4. Step 4: Simplify right side
    120,124x = 35,509,256,721
  5. Step 5: Solve for x
    x = 35,509,256,721/120,124
  6. Step 6: Final answer
    x = 295,605.01

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Why These Related Problems?

These problems maintain the same ratio (1.57) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.