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Finding the Fourth Proportional to 311,905.05, 467,853.26 and 75,245.73

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Solution

The fourth proportional to 311,905.05, 467,853.26 and 75,245.73 is: 112,867.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,905.05 : 467,853.26 = 75,245.73 : x
  2. Step 2: Convert to fraction form
    311,905.05/467,853.26 = 75,245.73/x
  3. Step 3: Cross multiply
    311,905.05x = 467,853.26 × 75,245.73
  4. Step 4: Simplify right side
    311,905.05x = 35,203,959,705.35
  5. Step 5: Solve for x
    x = 35,203,959,705.35/311,905.05
  6. Step 6: Final answer
    x = 112,867.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.