Home / 278,217.30-383,521.26-217,682.83

Finding the Fourth Proportional to 278,217.30, 383,521.26 and 217,682.83

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Solution

The fourth proportional to 278,217.30, 383,521.26 and 217,682.83 is: 300,074.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,217.30 : 383,521.26 = 217,682.83 : x
  2. Step 2: Convert to fraction form
    278,217.30/383,521.26 = 217,682.83/x
  3. Step 3: Cross multiply
    278,217.30x = 383,521.26 × 217,682.83
  4. Step 4: Simplify right side
    278,217.30x = 83,485,993,241.97
  5. Step 5: Solve for x
    x = 83,485,993,241.97/278,217.30
  6. Step 6: Final answer
    x = 300,074.77

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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.