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Finding the Fourth Proportional to 297.94, 447.03 and 135.58

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Solution

The fourth proportional to 297.94, 447.03 and 135.58 is: 203.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    297.94 : 447.03 = 135.58 : x
  2. Step 2: Convert to fraction form
    297.94/447.03 = 135.58/x
  3. Step 3: Cross multiply
    297.94x = 447.03 × 135.58
  4. Step 4: Simplify right side
    297.94x = 60,608.33
  5. Step 5: Solve for x
    x = 60,608.33/297.94
  6. Step 6: Final answer
    x = 203.42

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.