Home / 221,818.11-332,585.30-131,836.82

Finding the Fourth Proportional to 221,818.11, 332,585.30 and 131,836.82

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Solution

The fourth proportional to 221,818.11, 332,585.30 and 131,836.82 is: 197,670.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,818.11 : 332,585.30 = 131,836.82 : x
  2. Step 2: Convert to fraction form
    221,818.11/332,585.30 = 131,836.82/x
  3. Step 3: Cross multiply
    221,818.11x = 332,585.30 × 131,836.82
  4. Step 4: Simplify right side
    221,818.11x = 43,846,988,330.75
  5. Step 5: Solve for x
    x = 43,846,988,330.75/221,818.11
  6. Step 6: Final answer
    x = 197,670.91

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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.