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Finding the Fourth Proportional to 303.02, 418.38 and 204.86

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Solution

The fourth proportional to 303.02, 418.38 and 204.86 is: 282.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    303.02 : 418.38 = 204.86 : x
  2. Step 2: Convert to fraction form
    303.02/418.38 = 204.86/x
  3. Step 3: Cross multiply
    303.02x = 418.38 × 204.86
  4. Step 4: Simplify right side
    303.02x = 85,709.33
  5. Step 5: Solve for x
    x = 85,709.33/303.02
  6. Step 6: Final answer
    x = 282.85

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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.