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Finding the Fourth Proportional to 635.91, 954.09 and 311.19

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Solution

The fourth proportional to 635.91, 954.09 and 311.19 is: 466.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    635.91 : 954.09 = 311.19 : x
  2. Step 2: Convert to fraction form
    635.91/954.09 = 311.19/x
  3. Step 3: Cross multiply
    635.91x = 954.09 × 311.19
  4. Step 4: Simplify right side
    635.91x = 296,903.27
  5. Step 5: Solve for x
    x = 296,903.27/635.91
  6. Step 6: Final answer
    x = 466.90

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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.