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Finding the Fourth Proportional to 496.19, 744.28 and 149.52

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Solution

The fourth proportional to 496.19, 744.28 and 149.52 is: 224.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    496.19 : 744.28 = 149.52 : x
  2. Step 2: Convert to fraction form
    496.19/744.28 = 149.52/x
  3. Step 3: Cross multiply
    496.19x = 744.28 × 149.52
  4. Step 4: Simplify right side
    496.19x = 111,284.37
  5. Step 5: Solve for x
    x = 111,284.37/496.19
  6. Step 6: Final answer
    x = 224.28

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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.