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Finding the Fourth Proportional to 255.35, 350.01 and 251.75

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Solution

The fourth proportional to 255.35, 350.01 and 251.75 is: 345.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    255.35 : 350.01 = 251.75 : x
  2. Step 2: Convert to fraction form
    255.35/350.01 = 251.75/x
  3. Step 3: Cross multiply
    255.35x = 350.01 × 251.75
  4. Step 4: Simplify right side
    255.35x = 88,115.89
  5. Step 5: Solve for x
    x = 88,115.89/255.35
  6. Step 6: Final answer
    x = 345.08

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.