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Finding the Fourth Proportional to 234.14, 322.94 and 156.62

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Solution

The fourth proportional to 234.14, 322.94 and 156.62 is: 216.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    234.14 : 322.94 = 156.62 : x
  2. Step 2: Convert to fraction form
    234.14/322.94 = 156.62/x
  3. Step 3: Cross multiply
    234.14x = 322.94 × 156.62
  4. Step 4: Simplify right side
    234.14x = 50,578.86
  5. Step 5: Solve for x
    x = 50,578.86/234.14
  6. Step 6: Final answer
    x = 216.02

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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.