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Finding the Fourth Proportional to 239.34, 360.89 and 222.06

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Solution

The fourth proportional to 239.34, 360.89 and 222.06 is: 334.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    239.34 : 360.89 = 222.06 : x
  2. Step 2: Convert to fraction form
    239.34/360.89 = 222.06/x
  3. Step 3: Cross multiply
    239.34x = 360.89 × 222.06
  4. Step 4: Simplify right side
    239.34x = 80,138.12
  5. Step 5: Solve for x
    x = 80,138.12/239.34
  6. Step 6: Final answer
    x = 334.83

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.