Home / 263,459.30-394,022.55-221,468.90

Finding the Fourth Proportional to 263,459.30, 394,022.55 and 221,468.90

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Solution

The fourth proportional to 263,459.30, 394,022.55 and 221,468.90 is: 331,222.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,459.30 : 394,022.55 = 221,468.90 : x
  2. Step 2: Convert to fraction form
    263,459.30/394,022.55 = 221,468.90/x
  3. Step 3: Cross multiply
    263,459.30x = 394,022.55 × 221,468.90
  4. Step 4: Simplify right side
    263,459.30x = 87,263,740,723.70
  5. Step 5: Solve for x
    x = 87,263,740,723.70/263,459.30
  6. Step 6: Final answer
    x = 331,222.85

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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.