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Finding the Fourth Proportional to 344.11, 474.80 and 204.28

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Solution

The fourth proportional to 344.11, 474.80 and 204.28 is: 281.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    344.11 : 474.80 = 204.28 : x
  2. Step 2: Convert to fraction form
    344.11/474.80 = 204.28/x
  3. Step 3: Cross multiply
    344.11x = 474.80 × 204.28
  4. Step 4: Simplify right side
    344.11x = 96,989.77
  5. Step 5: Solve for x
    x = 96,989.77/344.11
  6. Step 6: Final answer
    x = 281.86

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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.