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Finding the Fourth Proportional to 636.73, 951.23 and 403.75

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Solution

The fourth proportional to 636.73, 951.23 and 403.75 is: 603.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    636.73 : 951.23 = 403.75 : x
  2. Step 2: Convert to fraction form
    636.73/951.23 = 403.75/x
  3. Step 3: Cross multiply
    636.73x = 951.23 × 403.75
  4. Step 4: Simplify right side
    636.73x = 384,059.04
  5. Step 5: Solve for x
    x = 384,059.04/636.73
  6. Step 6: Final answer
    x = 603.18

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.