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Finding the Fourth Proportional to 357.62, 535.92 and 254.14

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Solution

The fourth proportional to 357.62, 535.92 and 254.14 is: 380.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    357.62 : 535.92 = 254.14 : x
  2. Step 2: Convert to fraction form
    357.62/535.92 = 254.14/x
  3. Step 3: Cross multiply
    357.62x = 535.92 × 254.14
  4. Step 4: Simplify right side
    357.62x = 136,196.42
  5. Step 5: Solve for x
    x = 136,196.42/357.62
  6. Step 6: Final answer
    x = 380.85

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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.