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Finding the Fourth Proportional to 471.92, 651.32 and 272.84

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Solution

The fourth proportional to 471.92, 651.32 and 272.84 is: 376.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    471.92 : 651.32 = 272.84 : x
  2. Step 2: Convert to fraction form
    471.92/651.32 = 272.84/x
  3. Step 3: Cross multiply
    471.92x = 651.32 × 272.84
  4. Step 4: Simplify right side
    471.92x = 177,706.15
  5. Step 5: Solve for x
    x = 177,706.15/471.92
  6. Step 6: Final answer
    x = 376.56

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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.