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Finding the Fourth Proportional to 635.98, 953.91 and 327.64

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Solution

The fourth proportional to 635.98, 953.91 and 327.64 is: 491.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    635.98 : 953.91 = 327.64 : x
  2. Step 2: Convert to fraction form
    635.98/953.91 = 327.64/x
  3. Step 3: Cross multiply
    635.98x = 953.91 × 327.64
  4. Step 4: Simplify right side
    635.98x = 312,539.07
  5. Step 5: Solve for x
    x = 312,539.07/635.98
  6. Step 6: Final answer
    x = 491.43

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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.