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Finding the Fourth Proportional to 291.24, 401.16 and 244.56

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Solution

The fourth proportional to 291.24, 401.16 and 244.56 is: 336.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    291.24 : 401.16 = 244.56 : x
  2. Step 2: Convert to fraction form
    291.24/401.16 = 244.56/x
  3. Step 3: Cross multiply
    291.24x = 401.16 × 244.56
  4. Step 4: Simplify right side
    291.24x = 98,107.69
  5. Step 5: Solve for x
    x = 98,107.69/291.24
  6. Step 6: Final answer
    x = 336.86

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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.