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Finding the Fourth Proportional to 490.33, 735.11 and 335.78

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Solution

The fourth proportional to 490.33, 735.11 and 335.78 is: 503.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    490.33 : 735.11 = 335.78 : x
  2. Step 2: Convert to fraction form
    490.33/735.11 = 335.78/x
  3. Step 3: Cross multiply
    490.33x = 735.11 × 335.78
  4. Step 4: Simplify right side
    490.33x = 246,835.39
  5. Step 5: Solve for x
    x = 246,835.39/490.33
  6. Step 6: Final answer
    x = 503.41

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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.