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Finding the Fourth Proportional to 360.66, 541.41 and 238.62

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Solution

The fourth proportional to 360.66, 541.41 and 238.62 is: 358.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    360.66 : 541.41 = 238.62 : x
  2. Step 2: Convert to fraction form
    360.66/541.41 = 238.62/x
  3. Step 3: Cross multiply
    360.66x = 541.41 × 238.62
  4. Step 4: Simplify right side
    360.66x = 129,191.25
  5. Step 5: Solve for x
    x = 129,191.25/360.66
  6. Step 6: Final answer
    x = 358.21

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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.