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Finding the Fourth Proportional to 552.56, 826.80 and 333.32

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Solution

The fourth proportional to 552.56, 826.80 and 333.32 is: 498.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    552.56 : 826.80 = 333.32 : x
  2. Step 2: Convert to fraction form
    552.56/826.80 = 333.32/x
  3. Step 3: Cross multiply
    552.56x = 826.80 × 333.32
  4. Step 4: Simplify right side
    552.56x = 275,584.84
  5. Step 5: Solve for x
    x = 275,584.84/552.56
  6. Step 6: Final answer
    x = 498.74

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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.