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Finding the Fourth Proportional to 399.62, 599 and 245.12

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Solution

The fourth proportional to 399.62, 599 and 245.12 is: 367.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    399.62 : 599 = 245.12 : x
  2. Step 2: Convert to fraction form
    399.62/599 = 245.12/x
  3. Step 3: Cross multiply
    399.62x = 599 × 245.12
  4. Step 4: Simplify right side
    399.62x = 146,826.88
  5. Step 5: Solve for x
    x = 146,826.88/399.62
  6. Step 6: Final answer
    x = 367.42

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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.