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Finding the Third Proportional to 122,990 and 188,053

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Solution

The third proportional to 122,990 and 188,053 is: 287,535.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,990 : 188,053 = 188,053 : x
  2. Step 2: Convert to fraction form
    122,990/188,053 = 188,053/x
  3. Step 3: Cross multiply
    122,990x = 188,053 × 188,053
  4. Step 4: Simplify right side
    122,990x = 35,363,930,809
  5. Step 5: Solve for x
    x = 35,363,930,809/122,990
  6. Step 6: Final answer
    x = 287,535.01

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.