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Finding the Fourth Proportional to 221,447.75, 332,171.67 and 55,235.75

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Solution

The fourth proportional to 221,447.75, 332,171.67 and 55,235.75 is: 82,853.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,447.75 : 332,171.67 = 55,235.75 : x
  2. Step 2: Convert to fraction form
    221,447.75/332,171.67 = 55,235.75/x
  3. Step 3: Cross multiply
    221,447.75x = 332,171.67 × 55,235.75
  4. Step 4: Simplify right side
    221,447.75x = 18,347,751,321.20
  5. Step 5: Solve for x
    x = 18,347,751,321.20/221,447.75
  6. Step 6: Final answer
    x = 82,853.64

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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.