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Finding the Fourth Proportional to 888.59, 1,332.80 and 272.44

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Solution

The fourth proportional to 888.59, 1,332.80 and 272.44 is: 408.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    888.59 : 1,332.80 = 272.44 : x
  2. Step 2: Convert to fraction form
    888.59/1,332.80 = 272.44/x
  3. Step 3: Cross multiply
    888.59x = 1,332.80 × 272.44
  4. Step 4: Simplify right side
    888.59x = 363,100.01
  5. Step 5: Solve for x
    x = 363,100.01/888.59
  6. Step 6: Final answer
    x = 408.63

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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.