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Finding the Fourth Proportional to 552.63, 828.91 and 162.61

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Solution

The fourth proportional to 552.63, 828.91 and 162.61 is: 243.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    552.63 : 828.91 = 162.61 : x
  2. Step 2: Convert to fraction form
    552.63/828.91 = 162.61/x
  3. Step 3: Cross multiply
    552.63x = 828.91 × 162.61
  4. Step 4: Simplify right side
    552.63x = 134,789.06
  5. Step 5: Solve for x
    x = 134,789.06/552.63
  6. Step 6: Final answer
    x = 243.90

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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.