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Finding the Fourth Proportional to 239.45, 356.63 and 224.46

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Solution

The fourth proportional to 239.45, 356.63 and 224.46 is: 334.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    239.45 : 356.63 = 224.46 : x
  2. Step 2: Convert to fraction form
    239.45/356.63 = 224.46/x
  3. Step 3: Cross multiply
    239.45x = 356.63 × 224.46
  4. Step 4: Simplify right side
    239.45x = 80,048.05
  5. Step 5: Solve for x
    x = 80,048.05/239.45
  6. Step 6: Final answer
    x = 334.31

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.