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Finding the Fourth Proportional to 238.96, 356.04 and 223.25

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Solution

The fourth proportional to 238.96, 356.04 and 223.25 is: 332.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    238.96 : 356.04 = 223.25 : x
  2. Step 2: Convert to fraction form
    238.96/356.04 = 223.25/x
  3. Step 3: Cross multiply
    238.96x = 356.04 × 223.25
  4. Step 4: Simplify right side
    238.96x = 79,484.15
  5. Step 5: Solve for x
    x = 79,484.15/238.96
  6. Step 6: Final answer
    x = 332.62

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.