Home / 300,404.24-451,189.56-221,205.68

Finding the Fourth Proportional to 300,404.24, 451,189.56 and 221,205.68

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Solution

The fourth proportional to 300,404.24, 451,189.56 and 221,205.68 is: 332,237.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,404.24 : 451,189.56 = 221,205.68 : x
  2. Step 2: Convert to fraction form
    300,404.24/451,189.56 = 221,205.68/x
  3. Step 3: Cross multiply
    300,404.24x = 451,189.56 × 221,205.68
  4. Step 4: Simplify right side
    300,404.24x = 99,805,693,428.70
  5. Step 5: Solve for x
    x = 99,805,693,428.70/300,404.24
  6. Step 6: Final answer
    x = 332,237.97

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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.