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Finding the Fourth Proportional to 239.18, 358.25 and 200.73

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Solution

The fourth proportional to 239.18, 358.25 and 200.73 is: 300.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    239.18 : 358.25 = 200.73 : x
  2. Step 2: Convert to fraction form
    239.18/358.25 = 200.73/x
  3. Step 3: Cross multiply
    239.18x = 358.25 × 200.73
  4. Step 4: Simplify right side
    239.18x = 71,911.52
  5. Step 5: Solve for x
    x = 71,911.52/239.18
  6. Step 6: Final answer
    x = 300.66

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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.