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Finding the Fourth Proportional to 395.93, 593.89 and 213.41

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Solution

The fourth proportional to 395.93, 593.89 and 213.41 is: 320.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    395.93 : 593.89 = 213.41 : x
  2. Step 2: Convert to fraction form
    395.93/593.89 = 213.41/x
  3. Step 3: Cross multiply
    395.93x = 593.89 × 213.41
  4. Step 4: Simplify right side
    395.93x = 126,739.10
  5. Step 5: Solve for x
    x = 126,739.10/395.93
  6. Step 6: Final answer
    x = 320.11

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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.