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Finding the Fourth Proportional to 239.56, 358.73 and 200.95

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Solution

The fourth proportional to 239.56, 358.73 and 200.95 is: 300.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    239.56 : 358.73 = 200.95 : x
  2. Step 2: Convert to fraction form
    239.56/358.73 = 200.95/x
  3. Step 3: Cross multiply
    239.56x = 358.73 × 200.95
  4. Step 4: Simplify right side
    239.56x = 72,085.65
  5. Step 5: Solve for x
    x = 72,085.65/239.56
  6. Step 6: Final answer
    x = 300.91

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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.