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Finding the Fourth Proportional to 523.26, 722.25 and 326.70

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Solution

The fourth proportional to 523.26, 722.25 and 326.70 is: 450.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    523.26 : 722.25 = 326.70 : x
  2. Step 2: Convert to fraction form
    523.26/722.25 = 326.70/x
  3. Step 3: Cross multiply
    523.26x = 722.25 × 326.70
  4. Step 4: Simplify right side
    523.26x = 235,959.08
  5. Step 5: Solve for x
    x = 235,959.08/523.26
  6. Step 6: Final answer
    x = 450.94

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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.