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Finding the Fourth Proportional to 244.67, 366.41 and 129.21

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Solution

The fourth proportional to 244.67, 366.41 and 129.21 is: 193.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    244.67 : 366.41 = 129.21 : x
  2. Step 2: Convert to fraction form
    244.67/366.41 = 129.21/x
  3. Step 3: Cross multiply
    244.67x = 366.41 × 129.21
  4. Step 4: Simplify right side
    244.67x = 47,343.84
  5. Step 5: Solve for x
    x = 47,343.84/244.67
  6. Step 6: Final answer
    x = 193.50

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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.