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Finding the Fourth Proportional to 635.83, 953.75 and 327.31

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Solution

The fourth proportional to 635.83, 953.75 and 327.31 is: 490.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    635.83 : 953.75 = 327.31 : x
  2. Step 2: Convert to fraction form
    635.83/953.75 = 327.31/x
  3. Step 3: Cross multiply
    635.83x = 953.75 × 327.31
  4. Step 4: Simplify right side
    635.83x = 312,171.91
  5. Step 5: Solve for x
    x = 312,171.91/635.83
  6. Step 6: Final answer
    x = 490.97

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Similar ratio
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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.