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Finding the Fourth Proportional to 221,956.98, 332,968.62 and 81,704.94

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Solution

The fourth proportional to 221,956.98, 332,968.62 and 81,704.94 is: 122,569.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,956.98 : 332,968.62 = 81,704.94 : x
  2. Step 2: Convert to fraction form
    221,956.98/332,968.62 = 81,704.94/x
  3. Step 3: Cross multiply
    221,956.98x = 332,968.62 × 81,704.94
  4. Step 4: Simplify right side
    221,956.98x = 27,205,181,118.98
  5. Step 5: Solve for x
    x = 27,205,181,118.98/221,956.98
  6. Step 6: Final answer
    x = 122,569.61

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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.