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Finding the Fourth Proportional to 221,204.64, 331,808.18 and 54,992.64

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Solution

The fourth proportional to 221,204.64, 331,808.18 and 54,992.64 is: 82,489.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,204.64 : 331,808.18 = 54,992.64 : x
  2. Step 2: Convert to fraction form
    221,204.64/331,808.18 = 54,992.64/x
  3. Step 3: Cross multiply
    221,204.64x = 331,808.18 × 54,992.64
  4. Step 4: Simplify right side
    221,204.64x = 18,247,007,516.83
  5. Step 5: Solve for x
    x = 18,247,007,516.83/221,204.64
  6. Step 6: Final answer
    x = 82,489.26

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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.