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Finding the Fourth Proportional to 401.68, 554.11 and 244.27

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Solution

The fourth proportional to 401.68, 554.11 and 244.27 is: 336.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    401.68 : 554.11 = 244.27 : x
  2. Step 2: Convert to fraction form
    401.68/554.11 = 244.27/x
  3. Step 3: Cross multiply
    401.68x = 554.11 × 244.27
  4. Step 4: Simplify right side
    401.68x = 135,352.45
  5. Step 5: Solve for x
    x = 135,352.45/401.68
  6. Step 6: Final answer
    x = 336.97

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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.