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Finding the Fourth Proportional to 404.24, 605.80 and 219.02

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Solution

The fourth proportional to 404.24, 605.80 and 219.02 is: 328.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    404.24 : 605.80 = 219.02 : x
  2. Step 2: Convert to fraction form
    404.24/605.80 = 219.02/x
  3. Step 3: Cross multiply
    404.24x = 605.80 × 219.02
  4. Step 4: Simplify right side
    404.24x = 132,682.32
  5. Step 5: Solve for x
    x = 132,682.32/404.24
  6. Step 6: Final answer
    x = 328.23

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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.