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Finding the Fourth Proportional to 383.66, 575.52 and 149.48

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Solution

The fourth proportional to 383.66, 575.52 and 149.48 is: 224.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    383.66 : 575.52 = 149.48 : x
  2. Step 2: Convert to fraction form
    383.66/575.52 = 149.48/x
  3. Step 3: Cross multiply
    383.66x = 575.52 × 149.48
  4. Step 4: Simplify right side
    383.66x = 86,028.73
  5. Step 5: Solve for x
    x = 86,028.73/383.66
  6. Step 6: Final answer
    x = 224.23

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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.