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Finding the Fourth Proportional to 221,964.72, 332,939.16 and 72,204

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Solution

The fourth proportional to 221,964.72, 332,939.16 and 72,204 is: 108,303.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,964.72 : 332,939.16 = 72,204 : x
  2. Step 2: Convert to fraction form
    221,964.72/332,939.16 = 72,204/x
  3. Step 3: Cross multiply
    221,964.72x = 332,939.16 × 72,204
  4. Step 4: Simplify right side
    221,964.72x = 24,039,539,108.64
  5. Step 5: Solve for x
    x = 24,039,539,108.64/221,964.72
  6. Step 6: Final answer
    x = 108,303.42

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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.