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Finding the Fourth Proportional to 635.55, 953.25 and 327.29

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Solution

The fourth proportional to 635.55, 953.25 and 327.29 is: 490.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    635.55 : 953.25 = 327.29 : x
  2. Step 2: Convert to fraction form
    635.55/953.25 = 327.29/x
  3. Step 3: Cross multiply
    635.55x = 953.25 × 327.29
  4. Step 4: Simplify right side
    635.55x = 311,984.43
  5. Step 5: Solve for x
    x = 311,984.43/635.55
  6. Step 6: Final answer
    x = 490.89

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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.