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Finding the Fourth Proportional to 441.06, 608.86 and 330.90

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Solution

The fourth proportional to 441.06, 608.86 and 330.90 is: 456.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    441.06 : 608.86 = 330.90 : x
  2. Step 2: Convert to fraction form
    441.06/608.86 = 330.90/x
  3. Step 3: Cross multiply
    441.06x = 608.86 × 330.90
  4. Step 4: Simplify right side
    441.06x = 201,467.90
  5. Step 5: Solve for x
    x = 201,467.90/441.06
  6. Step 6: Final answer
    x = 456.79

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.