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Finding the Fourth Proportional to 353.88, 490.59 and 335.36

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Solution

The fourth proportional to 353.88, 490.59 and 335.36 is: 464.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    353.88 : 490.59 = 335.36 : x
  2. Step 2: Convert to fraction form
    353.88/490.59 = 335.36/x
  3. Step 3: Cross multiply
    353.88x = 490.59 × 335.36
  4. Step 4: Simplify right side
    353.88x = 164,524.26
  5. Step 5: Solve for x
    x = 164,524.26/353.88
  6. Step 6: Final answer
    x = 464.92

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.