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Finding the Fourth Proportional to 399.81, 600.04 and 204.95

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Solution

The fourth proportional to 399.81, 600.04 and 204.95 is: 307.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    399.81 : 600.04 = 204.95 : x
  2. Step 2: Convert to fraction form
    399.81/600.04 = 204.95/x
  3. Step 3: Cross multiply
    399.81x = 600.04 × 204.95
  4. Step 4: Simplify right side
    399.81x = 122,978.20
  5. Step 5: Solve for x
    x = 122,978.20/399.81
  6. Step 6: Final answer
    x = 307.59

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