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Finding the Fourth Proportional to 325.64, 449.04 and 214.97

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Solution

The fourth proportional to 325.64, 449.04 and 214.97 is: 296.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    325.64 : 449.04 = 214.97 : x
  2. Step 2: Convert to fraction form
    325.64/449.04 = 214.97/x
  3. Step 3: Cross multiply
    325.64x = 449.04 × 214.97
  4. Step 4: Simplify right side
    325.64x = 96,530.13
  5. Step 5: Solve for x
    x = 96,530.13/325.64
  6. Step 6: Final answer
    x = 296.43

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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.