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Finding the Fourth Proportional to 490.31, 736.50 and 374.36

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Solution

The fourth proportional to 490.31, 736.50 and 374.36 is: 562.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    490.31 : 736.50 = 374.36 : x
  2. Step 2: Convert to fraction form
    490.31/736.50 = 374.36/x
  3. Step 3: Cross multiply
    490.31x = 736.50 × 374.36
  4. Step 4: Simplify right side
    490.31x = 275,712.46
  5. Step 5: Solve for x
    x = 275,712.46/490.31
  6. Step 6: Final answer
    x = 562.33

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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.