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Finding the Fourth Proportional to 244.31, 366.48 and 81.99

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Solution

The fourth proportional to 244.31, 366.48 and 81.99 is: 122.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    244.31 : 366.48 = 81.99 : x
  2. Step 2: Convert to fraction form
    244.31/366.48 = 81.99/x
  3. Step 3: Cross multiply
    244.31x = 366.48 × 81.99
  4. Step 4: Simplify right side
    244.31x = 30,047.70
  5. Step 5: Solve for x
    x = 30,047.70/244.31
  6. Step 6: Final answer
    x = 122.99

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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.