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Finding the Fourth Proportional to 395.56, 593.33 and 135.56

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Solution

The fourth proportional to 395.56, 593.33 and 135.56 is: 203.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    395.56 : 593.33 = 135.56 : x
  2. Step 2: Convert to fraction form
    395.56/593.33 = 135.56/x
  3. Step 3: Cross multiply
    395.56x = 593.33 × 135.56
  4. Step 4: Simplify right side
    395.56x = 80,431.14
  5. Step 5: Solve for x
    x = 80,431.14/395.56
  6. Step 6: Final answer
    x = 203.34

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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.