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Finding the Fourth Proportional to 365.82, 505.35 and 255.26

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Solution

The fourth proportional to 365.82, 505.35 and 255.26 is: 352.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    365.82 : 505.35 = 255.26 : x
  2. Step 2: Convert to fraction form
    365.82/505.35 = 255.26/x
  3. Step 3: Cross multiply
    365.82x = 505.35 × 255.26
  4. Step 4: Simplify right side
    365.82x = 128,993.11
  5. Step 5: Solve for x
    x = 128,993.11/365.82
  6. Step 6: Final answer
    x = 352.61

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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.