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Finding the Fourth Proportional to 179.48, 249.40 and 177.30

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Solution

The fourth proportional to 179.48, 249.40 and 177.30 is: 246.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    179.48 : 249.40 = 177.30 : x
  2. Step 2: Convert to fraction form
    179.48/249.40 = 177.30/x
  3. Step 3: Cross multiply
    179.48x = 249.40 × 177.30
  4. Step 4: Simplify right side
    179.48x = 44,218.62
  5. Step 5: Solve for x
    x = 44,218.62/179.48
  6. Step 6: Final answer
    x = 246.37

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.