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Finding the Fourth Proportional to 239.63, 357.05 and 226.41

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Solution

The fourth proportional to 239.63, 357.05 and 226.41 is: 337.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    239.63 : 357.05 = 226.41 : x
  2. Step 2: Convert to fraction form
    239.63/357.05 = 226.41/x
  3. Step 3: Cross multiply
    239.63x = 357.05 × 226.41
  4. Step 4: Simplify right side
    239.63x = 80,838.56
  5. Step 5: Solve for x
    x = 80,838.56/239.63
  6. Step 6: Final answer
    x = 337.35

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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.