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Finding the Fourth Proportional to 328.04, 452.56 and 201.96

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Solution

The fourth proportional to 328.04, 452.56 and 201.96 is: 278.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    328.04 : 452.56 = 201.96 : x
  2. Step 2: Convert to fraction form
    328.04/452.56 = 201.96/x
  3. Step 3: Cross multiply
    328.04x = 452.56 × 201.96
  4. Step 4: Simplify right side
    328.04x = 91,399.02
  5. Step 5: Solve for x
    x = 91,399.02/328.04
  6. Step 6: Final answer
    x = 278.62

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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.