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Finding the Fourth Proportional to 251.58, 345.87 and 250.02

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Solution

The fourth proportional to 251.58, 345.87 and 250.02 is: 343.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    251.58 : 345.87 = 250.02 : x
  2. Step 2: Convert to fraction form
    251.58/345.87 = 250.02/x
  3. Step 3: Cross multiply
    251.58x = 345.87 × 250.02
  4. Step 4: Simplify right side
    251.58x = 86,474.42
  5. Step 5: Solve for x
    x = 86,474.42/251.58
  6. Step 6: Final answer
    x = 343.73

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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.