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Finding the Fourth Proportional to 382.02, 573.28 and 199.36

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Solution

The fourth proportional to 382.02, 573.28 and 199.36 is: 299.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    382.02 : 573.28 = 199.36 : x
  2. Step 2: Convert to fraction form
    382.02/573.28 = 199.36/x
  3. Step 3: Cross multiply
    382.02x = 573.28 × 199.36
  4. Step 4: Simplify right side
    382.02x = 114,289.10
  5. Step 5: Solve for x
    x = 114,289.10/382.02
  6. Step 6: Final answer
    x = 299.17

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.