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Finding the Fourth Proportional to 888.23, 1,331.97 and 271.79

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Solution

The fourth proportional to 888.23, 1,331.97 and 271.79 is: 407.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    888.23 : 1,331.97 = 271.79 : x
  2. Step 2: Convert to fraction form
    888.23/1,331.97 = 271.79/x
  3. Step 3: Cross multiply
    888.23x = 1,331.97 × 271.79
  4. Step 4: Simplify right side
    888.23x = 362,019.83
  5. Step 5: Solve for x
    x = 362,019.83/888.23
  6. Step 6: Final answer
    x = 407.58

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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.