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Finding the Fourth Proportional to 441.25, 609.06 and 325.15

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Solution

The fourth proportional to 441.25, 609.06 and 325.15 is: 448.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    441.25 : 609.06 = 325.15 : x
  2. Step 2: Convert to fraction form
    441.25/609.06 = 325.15/x
  3. Step 3: Cross multiply
    441.25x = 609.06 × 325.15
  4. Step 4: Simplify right side
    441.25x = 198,035.86
  5. Step 5: Solve for x
    x = 198,035.86/441.25
  6. Step 6: Final answer
    x = 448.81

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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.