Home / 381,834.75-526,942.89-212,079.81

Finding the Fourth Proportional to 381,834.75, 526,942.89 and 212,079.81

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Solution

The fourth proportional to 381,834.75, 526,942.89 and 212,079.81 is: 292,676.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,834.75 : 526,942.89 = 212,079.81 : x
  2. Step 2: Convert to fraction form
    381,834.75/526,942.89 = 212,079.81/x
  3. Step 3: Cross multiply
    381,834.75x = 526,942.89 × 212,079.81
  4. Step 4: Simplify right side
    381,834.75x = 111,753,947,992.05
  5. Step 5: Solve for x
    x = 111,753,947,992.05/381,834.75
  6. Step 6: Final answer
    x = 292,676.21

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.