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Finding the Fourth Proportional to 251.07, 375.99 and 178.17

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Solution

The fourth proportional to 251.07, 375.99 and 178.17 is: 266.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    251.07 : 375.99 = 178.17 : x
  2. Step 2: Convert to fraction form
    251.07/375.99 = 178.17/x
  3. Step 3: Cross multiply
    251.07x = 375.99 × 178.17
  4. Step 4: Simplify right side
    251.07x = 66,990.14
  5. Step 5: Solve for x
    x = 66,990.14/251.07
  6. Step 6: Final answer
    x = 266.82

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