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Finding the Fourth Proportional to 256.04, 352.92 and 234.85

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Solution

The fourth proportional to 256.04, 352.92 and 234.85 is: 323.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    256.04 : 352.92 = 234.85 : x
  2. Step 2: Convert to fraction form
    256.04/352.92 = 234.85/x
  3. Step 3: Cross multiply
    256.04x = 352.92 × 234.85
  4. Step 4: Simplify right side
    256.04x = 82,881.50
  5. Step 5: Solve for x
    x = 82,881.50/256.04
  6. Step 6: Final answer
    x = 323.71

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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.