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Finding the Fourth Proportional to 239.10, 358.65 and 237.30

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Solution

The fourth proportional to 239.10, 358.65 and 237.30 is: 355.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    239.10 : 358.65 = 237.30 : x
  2. Step 2: Convert to fraction form
    239.10/358.65 = 237.30/x
  3. Step 3: Cross multiply
    239.10x = 358.65 × 237.30
  4. Step 4: Simplify right side
    239.10x = 85,107.65
  5. Step 5: Solve for x
    x = 85,107.65/239.10
  6. Step 6: Final answer
    x = 355.95

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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.