Home / 280,227.38-420,344.73-93,238.88

Finding the Fourth Proportional to 280,227.38, 420,344.73 and 93,238.88

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Solution

The fourth proportional to 280,227.38, 420,344.73 and 93,238.88 is: 139,859.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,227.38 : 420,344.73 = 93,238.88 : x
  2. Step 2: Convert to fraction form
    280,227.38/420,344.73 = 93,238.88/x
  3. Step 3: Cross multiply
    280,227.38x = 420,344.73 × 93,238.88
  4. Step 4: Simplify right side
    280,227.38x = 39,192,469,737.38
  5. Step 5: Solve for x
    x = 39,192,469,737.38/280,227.38
  6. Step 6: Final answer
    x = 139,859.53

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1.5x scale

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.