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Finding the Fourth Proportional to 226.78, 340.02 and 158.34

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Solution

The fourth proportional to 226.78, 340.02 and 158.34 is: 237.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    226.78 : 340.02 = 158.34 : x
  2. Step 2: Convert to fraction form
    226.78/340.02 = 158.34/x
  3. Step 3: Cross multiply
    226.78x = 340.02 × 158.34
  4. Step 4: Simplify right side
    226.78x = 53,838.77
  5. Step 5: Solve for x
    x = 53,838.77/226.78
  6. Step 6: Final answer
    x = 237.41

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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.