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Finding the Fourth Proportional to 328.02, 452.82 and 249.36

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Solution

The fourth proportional to 328.02, 452.82 and 249.36 is: 344.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    328.02 : 452.82 = 249.36 : x
  2. Step 2: Convert to fraction form
    328.02/452.82 = 249.36/x
  3. Step 3: Cross multiply
    328.02x = 452.82 × 249.36
  4. Step 4: Simplify right side
    328.02x = 112,915.20
  5. Step 5: Solve for x
    x = 112,915.20/328.02
  6. Step 6: Final answer
    x = 344.23

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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.