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Finding the Fourth Proportional to 321.76, 444.24 and 234.28

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Solution

The fourth proportional to 321.76, 444.24 and 234.28 is: 323.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    321.76 : 444.24 = 234.28 : x
  2. Step 2: Convert to fraction form
    321.76/444.24 = 234.28/x
  3. Step 3: Cross multiply
    321.76x = 444.24 × 234.28
  4. Step 4: Simplify right side
    321.76x = 104,073.15
  5. Step 5: Solve for x
    x = 104,073.15/321.76
  6. Step 6: Final answer
    x = 323.45

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.