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Finding the Fourth Proportional to 221,227.32, 331,890.12 and 63,443.64

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Solution

The fourth proportional to 221,227.32, 331,890.12 and 63,443.64 is: 95,179.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,227.32 : 331,890.12 = 63,443.64 : x
  2. Step 2: Convert to fraction form
    221,227.32/331,890.12 = 63,443.64/x
  3. Step 3: Cross multiply
    221,227.32x = 331,890.12 × 63,443.64
  4. Step 4: Simplify right side
    221,227.32x = 21,056,317,292.84
  5. Step 5: Solve for x
    x = 21,056,317,292.84/221,227.32
  6. Step 6: Final answer
    x = 95,179.55

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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.