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Finding the Fourth Proportional to 544.41, 751.28 and 323.40

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Solution

The fourth proportional to 544.41, 751.28 and 323.40 is: 446.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    544.41 : 751.28 = 323.40 : x
  2. Step 2: Convert to fraction form
    544.41/751.28 = 323.40/x
  3. Step 3: Cross multiply
    544.41x = 751.28 × 323.40
  4. Step 4: Simplify right side
    544.41x = 242,960.20
  5. Step 5: Solve for x
    x = 242,960.20/544.41
  6. Step 6: Final answer
    x = 446.29

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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.