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Finding the Fourth Proportional to 244.30, 366.27 and 128.65

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Solution

The fourth proportional to 244.30, 366.27 and 128.65 is: 192.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    244.30 : 366.27 = 128.65 : x
  2. Step 2: Convert to fraction form
    244.30/366.27 = 128.65/x
  3. Step 3: Cross multiply
    244.30x = 366.27 × 128.65
  4. Step 4: Simplify right side
    244.30x = 47,120.64
  5. Step 5: Solve for x
    x = 47,120.64/244.30
  6. Step 6: Final answer
    x = 192.88

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.