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Finding the Fourth Proportional to 251.58, 377.41 and 207.99

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Solution

The fourth proportional to 251.58, 377.41 and 207.99 is: 312.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    251.58 : 377.41 = 207.99 : x
  2. Step 2: Convert to fraction form
    251.58/377.41 = 207.99/x
  3. Step 3: Cross multiply
    251.58x = 377.41 × 207.99
  4. Step 4: Simplify right side
    251.58x = 78,498.44
  5. Step 5: Solve for x
    x = 78,498.44/251.58
  6. Step 6: Final answer
    x = 312.02

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.