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Finding the Fourth Proportional to 544.45, 751.31 and 323.43

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Solution

The fourth proportional to 544.45, 751.31 and 323.43 is: 446.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    544.45 : 751.31 = 323.43 : x
  2. Step 2: Convert to fraction form
    544.45/751.31 = 323.43/x
  3. Step 3: Cross multiply
    544.45x = 751.31 × 323.43
  4. Step 4: Simplify right side
    544.45x = 242,996.19
  5. Step 5: Solve for x
    x = 242,996.19/544.45
  6. Step 6: Final answer
    x = 446.31

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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.