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Finding the Fourth Proportional to 888.45, 1,332.12 and 271.95

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Solution

The fourth proportional to 888.45, 1,332.12 and 271.95 is: 407.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    888.45 : 1,332.12 = 271.95 : x
  2. Step 2: Convert to fraction form
    888.45/1,332.12 = 271.95/x
  3. Step 3: Cross multiply
    888.45x = 1,332.12 × 271.95
  4. Step 4: Simplify right side
    888.45x = 362,270.03
  5. Step 5: Solve for x
    x = 362,270.03/888.45
  6. Step 6: Final answer
    x = 407.76

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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.