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Finding the Fourth Proportional to 524.28, 723.24 and 349.32

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Solution

The fourth proportional to 524.28, 723.24 and 349.32 is: 481.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    524.28 : 723.24 = 349.32 : x
  2. Step 2: Convert to fraction form
    524.28/723.24 = 349.32/x
  3. Step 3: Cross multiply
    524.28x = 723.24 × 349.32
  4. Step 4: Simplify right side
    524.28x = 252,642.20
  5. Step 5: Solve for x
    x = 252,642.20/524.28
  6. Step 6: Final answer
    x = 481.88

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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.