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Finding the Fourth Proportional to 251.05, 346.53 and 177.39

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Solution

The fourth proportional to 251.05, 346.53 and 177.39 is: 244.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    251.05 : 346.53 = 177.39 : x
  2. Step 2: Convert to fraction form
    251.05/346.53 = 177.39/x
  3. Step 3: Cross multiply
    251.05x = 346.53 × 177.39
  4. Step 4: Simplify right side
    251.05x = 61,470.96
  5. Step 5: Solve for x
    x = 61,470.96/251.05
  6. Step 6: Final answer
    x = 244.86

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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.