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Finding the Fourth Proportional to 888.76, 1,332.96 and 239.44

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Solution

The fourth proportional to 888.76, 1,332.96 and 239.44 is: 359.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    888.76 : 1,332.96 = 239.44 : x
  2. Step 2: Convert to fraction form
    888.76/1,332.96 = 239.44/x
  3. Step 3: Cross multiply
    888.76x = 1,332.96 × 239.44
  4. Step 4: Simplify right side
    888.76x = 319,163.94
  5. Step 5: Solve for x
    x = 319,163.94/888.76
  6. Step 6: Final answer
    x = 359.11

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.