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Finding the Fourth Proportional to 318.06, 439.07 and 244.62

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Solution

The fourth proportional to 318.06, 439.07 and 244.62 is: 337.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    318.06 : 439.07 = 244.62 : x
  2. Step 2: Convert to fraction form
    318.06/439.07 = 244.62/x
  3. Step 3: Cross multiply
    318.06x = 439.07 × 244.62
  4. Step 4: Simplify right side
    318.06x = 107,404.08
  5. Step 5: Solve for x
    x = 107,404.08/318.06
  6. Step 6: Final answer
    x = 337.68

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.