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Finding the Fourth Proportional to 221,941.56, 332,843.22 and 74,163

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Solution

The fourth proportional to 221,941.56, 332,843.22 and 74,163 is: 111,221.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,941.56 : 332,843.22 = 74,163 : x
  2. Step 2: Convert to fraction form
    221,941.56/332,843.22 = 74,163/x
  3. Step 3: Cross multiply
    221,941.56x = 332,843.22 × 74,163
  4. Step 4: Simplify right side
    221,941.56x = 24,684,651,724.86
  5. Step 5: Solve for x
    x = 24,684,651,724.86/221,941.56
  6. Step 6: Final answer
    x = 111,221.40

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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.