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Finding the Fourth Proportional to 888.97, 1,333.46 and 239.69

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Solution

The fourth proportional to 888.97, 1,333.46 and 239.69 is: 359.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    888.97 : 1,333.46 = 239.69 : x
  2. Step 2: Convert to fraction form
    888.97/1,333.46 = 239.69/x
  3. Step 3: Cross multiply
    888.97x = 1,333.46 × 239.69
  4. Step 4: Simplify right side
    888.97x = 319,617.03
  5. Step 5: Solve for x
    x = 319,617.03/888.97
  6. Step 6: Final answer
    x = 359.54

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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.