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Finding the Fourth Proportional to 239.99, 360.50 and 226.12

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Solution

The fourth proportional to 239.99, 360.50 and 226.12 is: 339.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    239.99 : 360.50 = 226.12 : x
  2. Step 2: Convert to fraction form
    239.99/360.50 = 226.12/x
  3. Step 3: Cross multiply
    239.99x = 360.50 × 226.12
  4. Step 4: Simplify right side
    239.99x = 81,516.26
  5. Step 5: Solve for x
    x = 81,516.26/239.99
  6. Step 6: Final answer
    x = 339.67

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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.