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Finding the Fourth Proportional to 441.81, 609.64 and 294.21

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Solution

The fourth proportional to 441.81, 609.64 and 294.21 is: 405.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    441.81 : 609.64 = 294.21 : x
  2. Step 2: Convert to fraction form
    441.81/609.64 = 294.21/x
  3. Step 3: Cross multiply
    441.81x = 609.64 × 294.21
  4. Step 4: Simplify right side
    441.81x = 179,361.45
  5. Step 5: Solve for x
    x = 179,361.45/441.81
  6. Step 6: Final answer
    x = 405.97

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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.