Home / 221,469.30-331,329.15-192,212.10

Finding the Fourth Proportional to 221,469.30, 331,329.15 and 192,212.10

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Solution

The fourth proportional to 221,469.30, 331,329.15 and 192,212.10 is: 287,558.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,469.30 : 331,329.15 = 192,212.10 : x
  2. Step 2: Convert to fraction form
    221,469.30/331,329.15 = 192,212.10/x
  3. Step 3: Cross multiply
    221,469.30x = 331,329.15 × 192,212.10
  4. Step 4: Simplify right side
    221,469.30x = 63,685,471,712.72
  5. Step 5: Solve for x
    x = 63,685,471,712.72/221,469.30
  6. Step 6: Final answer
    x = 287,558.92

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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.