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Finding the Fourth Proportional to 441.66, 662.47 and 149.17

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Solution

The fourth proportional to 441.66, 662.47 and 149.17 is: 223.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    441.66 : 662.47 = 149.17 : x
  2. Step 2: Convert to fraction form
    441.66/662.47 = 149.17/x
  3. Step 3: Cross multiply
    441.66x = 662.47 × 149.17
  4. Step 4: Simplify right side
    441.66x = 98,820.65
  5. Step 5: Solve for x
    x = 98,820.65/441.66
  6. Step 6: Final answer
    x = 223.75

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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.