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Finding the Fourth Proportional to 354.83, 490.23 and 327.47

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Solution

The fourth proportional to 354.83, 490.23 and 327.47 is: 452.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    354.83 : 490.23 = 327.47 : x
  2. Step 2: Convert to fraction form
    354.83/490.23 = 327.47/x
  3. Step 3: Cross multiply
    354.83x = 490.23 × 327.47
  4. Step 4: Simplify right side
    354.83x = 160,533.17
  5. Step 5: Solve for x
    x = 160,533.17/354.83
  6. Step 6: Final answer
    x = 452.43

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.