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Finding the Fourth Proportional to 404.55, 604.24 and 353.52

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Solution

The fourth proportional to 404.55, 604.24 and 353.52 is: 528.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    404.55 : 604.24 = 353.52 : x
  2. Step 2: Convert to fraction form
    404.55/604.24 = 353.52/x
  3. Step 3: Cross multiply
    404.55x = 604.24 × 353.52
  4. Step 4: Simplify right side
    404.55x = 213,610.04
  5. Step 5: Solve for x
    x = 213,610.04/404.55
  6. Step 6: Final answer
    x = 528.02

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.