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Finding the Fourth Proportional to 404.85, 604.32 and 356.25

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Solution

The fourth proportional to 404.85, 604.32 and 356.25 is: 531.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    404.85 : 604.32 = 356.25 : x
  2. Step 2: Convert to fraction form
    404.85/604.32 = 356.25/x
  3. Step 3: Cross multiply
    404.85x = 604.32 × 356.25
  4. Step 4: Simplify right side
    404.85x = 215,289.00
  5. Step 5: Solve for x
    x = 215,289.00/404.85
  6. Step 6: Final answer
    x = 531.77

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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.