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Finding the Fourth Proportional to 437.05, 655.37 and 254.50

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Solution

The fourth proportional to 437.05, 655.37 and 254.50 is: 381.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    437.05 : 655.37 = 254.50 : x
  2. Step 2: Convert to fraction form
    437.05/655.37 = 254.50/x
  3. Step 3: Cross multiply
    437.05x = 655.37 × 254.50
  4. Step 4: Simplify right side
    437.05x = 166,791.14
  5. Step 5: Solve for x
    x = 166,791.14/437.05
  6. Step 6: Final answer
    x = 381.63

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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.