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Finding the Fourth Proportional to 635.59, 953.42 and 327.25

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Solution

The fourth proportional to 635.59, 953.42 and 327.25 is: 490.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    635.59 : 953.42 = 327.25 : x
  2. Step 2: Convert to fraction form
    635.59/953.42 = 327.25/x
  3. Step 3: Cross multiply
    635.59x = 953.42 × 327.25
  4. Step 4: Simplify right side
    635.59x = 312,006.70
  5. Step 5: Solve for x
    x = 312,006.70/635.59
  6. Step 6: Final answer
    x = 490.89

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Double scale
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1.5x scale

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.