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Finding the Fourth Proportional to 343.73, 474.35 and 203.92

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Solution

The fourth proportional to 343.73, 474.35 and 203.92 is: 281.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    343.73 : 474.35 = 203.92 : x
  2. Step 2: Convert to fraction form
    343.73/474.35 = 203.92/x
  3. Step 3: Cross multiply
    343.73x = 474.35 × 203.92
  4. Step 4: Simplify right side
    343.73x = 96,726.06
  5. Step 5: Solve for x
    x = 96,726.06/343.73
  6. Step 6: Final answer
    x = 281.41

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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.