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Finding the Fourth Proportional to 251.62, 376.89 and 170.08

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Solution

The fourth proportional to 251.62, 376.89 and 170.08 is: 254.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    251.62 : 376.89 = 170.08 : x
  2. Step 2: Convert to fraction form
    251.62/376.89 = 170.08/x
  3. Step 3: Cross multiply
    251.62x = 376.89 × 170.08
  4. Step 4: Simplify right side
    251.62x = 64,101.45
  5. Step 5: Solve for x
    x = 64,101.45/251.62
  6. Step 6: Final answer
    x = 254.75

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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.