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Finding the Fourth Proportional to 456.44, 629.88 and 249.44

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Solution

The fourth proportional to 456.44, 629.88 and 249.44 is: 344.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    456.44 : 629.88 = 249.44 : x
  2. Step 2: Convert to fraction form
    456.44/629.88 = 249.44/x
  3. Step 3: Cross multiply
    456.44x = 629.88 × 249.44
  4. Step 4: Simplify right side
    456.44x = 157,117.27
  5. Step 5: Solve for x
    x = 157,117.27/456.44
  6. Step 6: Final answer
    x = 344.22

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.