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Finding the Fourth Proportional to 251.07, 346.64 and 163.77

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Solution

The fourth proportional to 251.07, 346.64 and 163.77 is: 226.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    251.07 : 346.64 = 163.77 : x
  2. Step 2: Convert to fraction form
    251.07/346.64 = 163.77/x
  3. Step 3: Cross multiply
    251.07x = 346.64 × 163.77
  4. Step 4: Simplify right side
    251.07x = 56,768.41
  5. Step 5: Solve for x
    x = 56,768.41/251.07
  6. Step 6: Final answer
    x = 226.11

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.