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Finding the Fourth Proportional to 401.52, 553.96 and 244.09

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Solution

The fourth proportional to 401.52, 553.96 and 244.09 is: 336.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    401.52 : 553.96 = 244.09 : x
  2. Step 2: Convert to fraction form
    401.52/553.96 = 244.09/x
  3. Step 3: Cross multiply
    401.52x = 553.96 × 244.09
  4. Step 4: Simplify right side
    401.52x = 135,216.10
  5. Step 5: Solve for x
    x = 135,216.10/401.52
  6. Step 6: Final answer
    x = 336.76

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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.