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Finding the Fourth Proportional to 471.49, 650.46 and 272.28

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Solution

The fourth proportional to 471.49, 650.46 and 272.28 is: 375.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    471.49 : 650.46 = 272.28 : x
  2. Step 2: Convert to fraction form
    471.49/650.46 = 272.28/x
  3. Step 3: Cross multiply
    471.49x = 650.46 × 272.28
  4. Step 4: Simplify right side
    471.49x = 177,106.46
  5. Step 5: Solve for x
    x = 177,106.46/471.49
  6. Step 6: Final answer
    x = 375.63

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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.