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Finding the Fourth Proportional to 326.16, 449.95 and 195.16

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Solution

The fourth proportional to 326.16, 449.95 and 195.16 is: 269.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    326.16 : 449.95 = 195.16 : x
  2. Step 2: Convert to fraction form
    326.16/449.95 = 195.16/x
  3. Step 3: Cross multiply
    326.16x = 449.95 × 195.16
  4. Step 4: Simplify right side
    326.16x = 87,812.24
  5. Step 5: Solve for x
    x = 87,812.24/326.16
  6. Step 6: Final answer
    x = 269.23

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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.