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Finding the Fourth Proportional to 362.28, 499.78 and 214.83

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Solution

The fourth proportional to 362.28, 499.78 and 214.83 is: 296.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    362.28 : 499.78 = 214.83 : x
  2. Step 2: Convert to fraction form
    362.28/499.78 = 214.83/x
  3. Step 3: Cross multiply
    362.28x = 499.78 × 214.83
  4. Step 4: Simplify right side
    362.28x = 107,365.95
  5. Step 5: Solve for x
    x = 107,365.95/362.28
  6. Step 6: Final answer
    x = 296.36

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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.