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Finding the Fourth Proportional to 490.91, 736.90 and 334.85

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Solution

The fourth proportional to 490.91, 736.90 and 334.85 is: 502.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    490.91 : 736.90 = 334.85 : x
  2. Step 2: Convert to fraction form
    490.91/736.90 = 334.85/x
  3. Step 3: Cross multiply
    490.91x = 736.90 × 334.85
  4. Step 4: Simplify right side
    490.91x = 246,747.28
  5. Step 5: Solve for x
    x = 246,747.28/490.91
  6. Step 6: Final answer
    x = 502.64

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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.