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Finding the Fourth Proportional to 251.41, 376.25 and 153.86

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Solution

The fourth proportional to 251.41, 376.25 and 153.86 is: 230.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    251.41 : 376.25 = 153.86 : x
  2. Step 2: Convert to fraction form
    251.41/376.25 = 153.86/x
  3. Step 3: Cross multiply
    251.41x = 376.25 × 153.86
  4. Step 4: Simplify right side
    251.41x = 57,889.83
  5. Step 5: Solve for x
    x = 57,889.83/251.41
  6. Step 6: Final answer
    x = 230.26

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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.