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Finding the Fourth Proportional to 604.72, 906.88 and 330.96

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Solution

The fourth proportional to 604.72, 906.88 and 330.96 is: 496.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    604.72 : 906.88 = 330.96 : x
  2. Step 2: Convert to fraction form
    604.72/906.88 = 330.96/x
  3. Step 3: Cross multiply
    604.72x = 906.88 × 330.96
  4. Step 4: Simplify right side
    604.72x = 300,141.00
  5. Step 5: Solve for x
    x = 300,141.00/604.72
  6. Step 6: Final answer
    x = 496.33

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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.