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Finding the Fourth Proportional to 234.29, 322.99 and 192.78

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Solution

The fourth proportional to 234.29, 322.99 and 192.78 is: 265.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    234.29 : 322.99 = 192.78 : x
  2. Step 2: Convert to fraction form
    234.29/322.99 = 192.78/x
  3. Step 3: Cross multiply
    234.29x = 322.99 × 192.78
  4. Step 4: Simplify right side
    234.29x = 62,265.53
  5. Step 5: Solve for x
    x = 62,265.53/234.29
  6. Step 6: Final answer
    x = 265.76

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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.