Home / 381,913.62-526,982.24-220,737.60

Finding the Fourth Proportional to 381,913.62, 526,982.24 and 220,737.60

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Solution

The fourth proportional to 381,913.62, 526,982.24 and 220,737.60 is: 304,584.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,913.62 : 526,982.24 = 220,737.60 : x
  2. Step 2: Convert to fraction form
    381,913.62/526,982.24 = 220,737.60/x
  3. Step 3: Cross multiply
    381,913.62x = 526,982.24 × 220,737.60
  4. Step 4: Simplify right side
    381,913.62x = 116,324,794,900.22
  5. Step 5: Solve for x
    x = 116,324,794,900.22/381,913.62
  6. Step 6: Final answer
    x = 304,584.04

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1.5x scale

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.