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Finding the Fourth Proportional to 221,217.84, 331,827.84 and 55,005.84

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Solution

The fourth proportional to 221,217.84, 331,827.84 and 55,005.84 is: 82,509.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,217.84 : 331,827.84 = 55,005.84 : x
  2. Step 2: Convert to fraction form
    221,217.84/331,827.84 = 55,005.84/x
  3. Step 3: Cross multiply
    221,217.84x = 331,827.84 × 55,005.84
  4. Step 4: Simplify right side
    221,217.84x = 18,252,469,074.59
  5. Step 5: Solve for x
    x = 18,252,469,074.59/221,217.84
  6. Step 6: Final answer
    x = 82,509.03

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1.5x scale

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.