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Finding the Fourth Proportional to 355.11, 535.23 and 335.25

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Solution

The fourth proportional to 355.11, 535.23 and 335.25 is: 505.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    355.11 : 535.23 = 335.25 : x
  2. Step 2: Convert to fraction form
    355.11/535.23 = 335.25/x
  3. Step 3: Cross multiply
    355.11x = 535.23 × 335.25
  4. Step 4: Simplify right side
    355.11x = 179,435.86
  5. Step 5: Solve for x
    x = 179,435.86/355.11
  6. Step 6: Final answer
    x = 505.30

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.