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Finding the Fourth Proportional to 251.99, 379.93 and 250.43

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Solution

The fourth proportional to 251.99, 379.93 and 250.43 is: 377.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    251.99 : 379.93 = 250.43 : x
  2. Step 2: Convert to fraction form
    251.99/379.93 = 250.43/x
  3. Step 3: Cross multiply
    251.99x = 379.93 × 250.43
  4. Step 4: Simplify right side
    251.99x = 95,145.87
  5. Step 5: Solve for x
    x = 95,145.87/251.99
  6. Step 6: Final answer
    x = 377.58

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.