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Finding the Fourth Proportional to 552.20, 828.40 and 335.32

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Solution

The fourth proportional to 552.20, 828.40 and 335.32 is: 503.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    552.20 : 828.40 = 335.32 : x
  2. Step 2: Convert to fraction form
    552.20/828.40 = 335.32/x
  3. Step 3: Cross multiply
    552.20x = 828.40 × 335.32
  4. Step 4: Simplify right side
    552.20x = 277,779.09
  5. Step 5: Solve for x
    x = 277,779.09/552.20
  6. Step 6: Final answer
    x = 503.04

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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.