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Finding the Fourth Proportional to 544.44, 751.36 and 311.56

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Solution

The fourth proportional to 544.44, 751.36 and 311.56 is: 429.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    544.44 : 751.36 = 311.56 : x
  2. Step 2: Convert to fraction form
    544.44/751.36 = 311.56/x
  3. Step 3: Cross multiply
    544.44x = 751.36 × 311.56
  4. Step 4: Simplify right side
    544.44x = 234,093.72
  5. Step 5: Solve for x
    x = 234,093.72/544.44
  6. Step 6: Final answer
    x = 429.97

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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.