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Finding the Fourth Proportional to 234.49, 323.62 and 134.93

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Solution

The fourth proportional to 234.49, 323.62 and 134.93 is: 186.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    234.49 : 323.62 = 134.93 : x
  2. Step 2: Convert to fraction form
    234.49/323.62 = 134.93/x
  3. Step 3: Cross multiply
    234.49x = 323.62 × 134.93
  4. Step 4: Simplify right side
    234.49x = 43,666.05
  5. Step 5: Solve for x
    x = 43,666.05/234.49
  6. Step 6: Final answer
    x = 186.22

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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.