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Finding the Fourth Proportional to 365.12, 500.32 and 351.68

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Solution

The fourth proportional to 365.12, 500.32 and 351.68 is: 481.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    365.12 : 500.32 = 351.68 : x
  2. Step 2: Convert to fraction form
    365.12/500.32 = 351.68/x
  3. Step 3: Cross multiply
    365.12x = 500.32 × 351.68
  4. Step 4: Simplify right side
    365.12x = 175,952.54
  5. Step 5: Solve for x
    x = 175,952.54/365.12
  6. Step 6: Final answer
    x = 481.90

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.