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Finding the Fourth Proportional to 255.08, 380.55 and 236.48

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Solution

The fourth proportional to 255.08, 380.55 and 236.48 is: 352.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    255.08 : 380.55 = 236.48 : x
  2. Step 2: Convert to fraction form
    255.08/380.55 = 236.48/x
  3. Step 3: Cross multiply
    255.08x = 380.55 × 236.48
  4. Step 4: Simplify right side
    255.08x = 89,990.56
  5. Step 5: Solve for x
    x = 89,990.56/255.08
  6. Step 6: Final answer
    x = 352.79

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.