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Finding the Fourth Proportional to 381,251.44, 526,189.86 and 211,540.24

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Solution

The fourth proportional to 381,251.44, 526,189.86 and 211,540.24 is: 291,960.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,251.44 : 526,189.86 = 211,540.24 : x
  2. Step 2: Convert to fraction form
    381,251.44/526,189.86 = 211,540.24/x
  3. Step 3: Cross multiply
    381,251.44x = 526,189.86 × 211,540.24
  4. Step 4: Simplify right side
    381,251.44x = 111,310,329,269.97
  5. Step 5: Solve for x
    x = 111,310,329,269.97/381,251.44
  6. Step 6: Final answer
    x = 291,960.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.