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Finding the Fourth Proportional to 484.91, 726.99 and 238.04

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Solution

The fourth proportional to 484.91, 726.99 and 238.04 is: 356.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    484.91 : 726.99 = 238.04 : x
  2. Step 2: Convert to fraction form
    484.91/726.99 = 238.04/x
  3. Step 3: Cross multiply
    484.91x = 726.99 × 238.04
  4. Step 4: Simplify right side
    484.91x = 173,049.06
  5. Step 5: Solve for x
    x = 173,049.06/484.91
  6. Step 6: Final answer
    x = 356.87

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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.