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Finding the Fourth Proportional to 636.52, 953.44 and 327.43

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Solution

The fourth proportional to 636.52, 953.44 and 327.43 is: 490.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    636.52 : 953.44 = 327.43 : x
  2. Step 2: Convert to fraction form
    636.52/953.44 = 327.43/x
  3. Step 3: Cross multiply
    636.52x = 953.44 × 327.43
  4. Step 4: Simplify right side
    636.52x = 312,184.86
  5. Step 5: Solve for x
    x = 312,184.86/636.52
  6. Step 6: Final answer
    x = 490.46

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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.