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Finding the Fourth Proportional to 409.56, 565.75 and 327.24

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Solution

The fourth proportional to 409.56, 565.75 and 327.24 is: 452.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    409.56 : 565.75 = 327.24 : x
  2. Step 2: Convert to fraction form
    409.56/565.75 = 327.24/x
  3. Step 3: Cross multiply
    409.56x = 565.75 × 327.24
  4. Step 4: Simplify right side
    409.56x = 185,136.72
  5. Step 5: Solve for x
    x = 185,136.72/409.56
  6. Step 6: Final answer
    x = 452.04

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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.