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Finding the Fourth Proportional to 888.94, 1,333.26 and 239.68

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Solution

The fourth proportional to 888.94, 1,333.26 and 239.68 is: 359.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    888.94 : 1,333.26 = 239.68 : x
  2. Step 2: Convert to fraction form
    888.94/1,333.26 = 239.68/x
  3. Step 3: Cross multiply
    888.94x = 1,333.26 × 239.68
  4. Step 4: Simplify right side
    888.94x = 319,555.76
  5. Step 5: Solve for x
    x = 319,555.76/888.94
  6. Step 6: Final answer
    x = 359.48

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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.