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Finding the Fourth Proportional to 635.60, 951.69 and 403.23

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Solution

The fourth proportional to 635.60, 951.69 and 403.23 is: 603.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    635.60 : 951.69 = 403.23 : x
  2. Step 2: Convert to fraction form
    635.60/951.69 = 403.23/x
  3. Step 3: Cross multiply
    635.60x = 951.69 × 403.23
  4. Step 4: Simplify right side
    635.60x = 383,746.85
  5. Step 5: Solve for x
    x = 383,746.85/635.60
  6. Step 6: Final answer
    x = 603.76

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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.