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Finding the Fourth Proportional to 395.96, 593.80 and 152.56

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Solution

The fourth proportional to 395.96, 593.80 and 152.56 is: 228.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    395.96 : 593.80 = 152.56 : x
  2. Step 2: Convert to fraction form
    395.96/593.80 = 152.56/x
  3. Step 3: Cross multiply
    395.96x = 593.80 × 152.56
  4. Step 4: Simplify right side
    395.96x = 90,590.13
  5. Step 5: Solve for x
    x = 90,590.13/395.96
  6. Step 6: Final answer
    x = 228.79

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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.