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Finding the Fourth Proportional to 255.56, 354.29 and 241.70

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Solution

The fourth proportional to 255.56, 354.29 and 241.70 is: 335.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    255.56 : 354.29 = 241.70 : x
  2. Step 2: Convert to fraction form
    255.56/354.29 = 241.70/x
  3. Step 3: Cross multiply
    255.56x = 354.29 × 241.70
  4. Step 4: Simplify right side
    255.56x = 85,631.89
  5. Step 5: Solve for x
    x = 85,631.89/255.56
  6. Step 6: Final answer
    x = 335.08

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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.