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Finding the Fourth Proportional to 496.53, 745.38 and 394.28

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Solution

The fourth proportional to 496.53, 745.38 and 394.28 is: 591.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    496.53 : 745.38 = 394.28 : x
  2. Step 2: Convert to fraction form
    496.53/745.38 = 394.28/x
  3. Step 3: Cross multiply
    496.53x = 745.38 × 394.28
  4. Step 4: Simplify right side
    496.53x = 293,888.43
  5. Step 5: Solve for x
    x = 293,888.43/496.53
  6. Step 6: Final answer
    x = 591.88

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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.