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Finding the Fourth Proportional to 243.28, 364.72 and 224.06

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Solution

The fourth proportional to 243.28, 364.72 and 224.06 is: 335.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    243.28 : 364.72 = 224.06 : x
  2. Step 2: Convert to fraction form
    243.28/364.72 = 224.06/x
  3. Step 3: Cross multiply
    243.28x = 364.72 × 224.06
  4. Step 4: Simplify right side
    243.28x = 81,719.16
  5. Step 5: Solve for x
    x = 81,719.16/243.28
  6. Step 6: Final answer
    x = 335.91

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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.