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Finding the Fourth Proportional to 238.08, 355.48 and 223.52

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Solution

The fourth proportional to 238.08, 355.48 and 223.52 is: 333.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    238.08 : 355.48 = 223.52 : x
  2. Step 2: Convert to fraction form
    238.08/355.48 = 223.52/x
  3. Step 3: Cross multiply
    238.08x = 355.48 × 223.52
  4. Step 4: Simplify right side
    238.08x = 79,456.89
  5. Step 5: Solve for x
    x = 79,456.89/238.08
  6. Step 6: Final answer
    x = 333.74

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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.