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Finding the Fourth Proportional to 548.36, 819.52 and 444.56

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Solution

The fourth proportional to 548.36, 819.52 and 444.56 is: 664.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    548.36 : 819.52 = 444.56 : x
  2. Step 2: Convert to fraction form
    548.36/819.52 = 444.56/x
  3. Step 3: Cross multiply
    548.36x = 819.52 × 444.56
  4. Step 4: Simplify right side
    548.36x = 364,325.81
  5. Step 5: Solve for x
    x = 364,325.81/548.36
  6. Step 6: Final answer
    x = 664.39

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.