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Finding the Fourth Proportional to 255.77, 354.57 and 241.91

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Solution

The fourth proportional to 255.77, 354.57 and 241.91 is: 335.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    255.77 : 354.57 = 241.91 : x
  2. Step 2: Convert to fraction form
    255.77/354.57 = 241.91/x
  3. Step 3: Cross multiply
    255.77x = 354.57 × 241.91
  4. Step 4: Simplify right side
    255.77x = 85,772.26
  5. Step 5: Solve for x
    x = 85,772.26/255.77
  6. Step 6: Final answer
    x = 335.36

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.