Home / 221,721.29-332,569.64-197,043.72

Finding the Fourth Proportional to 221,721.29, 332,569.64 and 197,043.72

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Solution

The fourth proportional to 221,721.29, 332,569.64 and 197,043.72 is: 295,554.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,721.29 : 332,569.64 = 197,043.72 : x
  2. Step 2: Convert to fraction form
    221,721.29/332,569.64 = 197,043.72/x
  3. Step 3: Cross multiply
    221,721.29x = 332,569.64 × 197,043.72
  4. Step 4: Simplify right side
    221,721.29x = 65,530,758,039.44
  5. Step 5: Solve for x
    x = 65,530,758,039.44/221,721.29
  6. Step 6: Final answer
    x = 295,554.66

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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.