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Finding the Fourth Proportional to 716.43, 1,074.54 and 229.37

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Solution

The fourth proportional to 716.43, 1,074.54 and 229.37 is: 344.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    716.43 : 1,074.54 = 229.37 : x
  2. Step 2: Convert to fraction form
    716.43/1,074.54 = 229.37/x
  3. Step 3: Cross multiply
    716.43x = 1,074.54 × 229.37
  4. Step 4: Simplify right side
    716.43x = 246,467.24
  5. Step 5: Solve for x
    x = 246,467.24/716.43
  6. Step 6: Final answer
    x = 344.02

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.