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Finding the Fourth Proportional to 362.15, 499.89 and 231.13

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Solution

The fourth proportional to 362.15, 499.89 and 231.13 is: 319.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    362.15 : 499.89 = 231.13 : x
  2. Step 2: Convert to fraction form
    362.15/499.89 = 231.13/x
  3. Step 3: Cross multiply
    362.15x = 499.89 × 231.13
  4. Step 4: Simplify right side
    362.15x = 115,539.58
  5. Step 5: Solve for x
    x = 115,539.58/362.15
  6. Step 6: Final answer
    x = 319.04

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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.