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Finding the Fourth Proportional to 362.15, 499.75 and 204.78

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Solution

The fourth proportional to 362.15, 499.75 and 204.78 is: 282.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    362.15 : 499.75 = 204.78 : x
  2. Step 2: Convert to fraction form
    362.15/499.75 = 204.78/x
  3. Step 3: Cross multiply
    362.15x = 499.75 × 204.78
  4. Step 4: Simplify right side
    362.15x = 102,338.81
  5. Step 5: Solve for x
    x = 102,338.81/362.15
  6. Step 6: Final answer
    x = 282.59

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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.