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Finding the Fourth Proportional to 304.02, 419.24 and 204.39

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Solution

The fourth proportional to 304.02, 419.24 and 204.39 is: 281.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    304.02 : 419.24 = 204.39 : x
  2. Step 2: Convert to fraction form
    304.02/419.24 = 204.39/x
  3. Step 3: Cross multiply
    304.02x = 419.24 × 204.39
  4. Step 4: Simplify right side
    304.02x = 85,688.97
  5. Step 5: Solve for x
    x = 85,688.97/304.02
  6. Step 6: Final answer
    x = 281.85

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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.