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Finding the Fourth Proportional to 523.11, 721.59 and 336.54

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Solution

The fourth proportional to 523.11, 721.59 and 336.54 is: 464.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    523.11 : 721.59 = 336.54 : x
  2. Step 2: Convert to fraction form
    523.11/721.59 = 336.54/x
  3. Step 3: Cross multiply
    523.11x = 721.59 × 336.54
  4. Step 4: Simplify right side
    523.11x = 242,844.44
  5. Step 5: Solve for x
    x = 242,844.44/523.11
  6. Step 6: Final answer
    x = 464.23

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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.