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Finding the Fourth Proportional to 392.11, 541.25 and 244.69

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Solution

The fourth proportional to 392.11, 541.25 and 244.69 is: 337.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    392.11 : 541.25 = 244.69 : x
  2. Step 2: Convert to fraction form
    392.11/541.25 = 244.69/x
  3. Step 3: Cross multiply
    392.11x = 541.25 × 244.69
  4. Step 4: Simplify right side
    392.11x = 132,438.46
  5. Step 5: Solve for x
    x = 132,438.46/392.11
  6. Step 6: Final answer
    x = 337.76

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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.