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Finding the Third Proportional to 355.92 and 541.55

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Solution

The third proportional to 355.92 and 541.55 is: 823.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    355.92 : 541.55 = 541.55 : x
  2. Step 2: Convert to fraction form
    355.92/541.55 = 541.55/x
  3. Step 3: Cross multiply
    355.92x = 541.55 × 541.55
  4. Step 4: Simplify right side
    355.92x = 293,273.02
  5. Step 5: Solve for x
    x = 293,273.02/355.92
  6. Step 6: Final answer
    x = 823.98

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Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.