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Finding the Fourth Proportional to 234.22, 323.50 and 156.46

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Solution

The fourth proportional to 234.22, 323.50 and 156.46 is: 216.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    234.22 : 323.50 = 156.46 : x
  2. Step 2: Convert to fraction form
    234.22/323.50 = 156.46/x
  3. Step 3: Cross multiply
    234.22x = 323.50 × 156.46
  4. Step 4: Simplify right side
    234.22x = 50,614.81
  5. Step 5: Solve for x
    x = 50,614.81/234.22
  6. Step 6: Final answer
    x = 216.10

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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.