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Finding the Fourth Proportional to 300.99, 452.30 and 219.59

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Solution

The fourth proportional to 300.99, 452.30 and 219.59 is: 329.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    300.99 : 452.30 = 219.59 : x
  2. Step 2: Convert to fraction form
    300.99/452.30 = 219.59/x
  3. Step 3: Cross multiply
    300.99x = 452.30 × 219.59
  4. Step 4: Simplify right side
    300.99x = 99,317.20
  5. Step 5: Solve for x
    x = 99,317.20/300.99
  6. Step 6: Final answer
    x = 329.97

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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.