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Finding the Fourth Proportional to 635.14, 951.65 and 403.99

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Solution

The fourth proportional to 635.14, 951.65 and 403.99 is: 605.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    635.14 : 951.65 = 403.99 : x
  2. Step 2: Convert to fraction form
    635.14/951.65 = 403.99/x
  3. Step 3: Cross multiply
    635.14x = 951.65 × 403.99
  4. Step 4: Simplify right side
    635.14x = 384,454.20
  5. Step 5: Solve for x
    x = 384,454.20/635.14
  6. Step 6: Final answer
    x = 605.31

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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.