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Finding the Fourth Proportional to 251.66, 379.37 and 234.93

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Solution

The fourth proportional to 251.66, 379.37 and 234.93 is: 354.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    251.66 : 379.37 = 234.93 : x
  2. Step 2: Convert to fraction form
    251.66/379.37 = 234.93/x
  3. Step 3: Cross multiply
    251.66x = 379.37 × 234.93
  4. Step 4: Simplify right side
    251.66x = 89,124.22
  5. Step 5: Solve for x
    x = 89,124.22/251.66
  6. Step 6: Final answer
    x = 354.15

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.