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Finding the Fourth Proportional to 471.36, 650.48 and 274.88

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Solution

The fourth proportional to 471.36, 650.48 and 274.88 is: 379.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    471.36 : 650.48 = 274.88 : x
  2. Step 2: Convert to fraction form
    471.36/650.48 = 274.88/x
  3. Step 3: Cross multiply
    471.36x = 650.48 × 274.88
  4. Step 4: Simplify right side
    471.36x = 178,799.32
  5. Step 5: Solve for x
    x = 178,799.32/471.36
  6. Step 6: Final answer
    x = 379.33

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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.