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Finding the Third Proportional to 179.38 and 253.94

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Solution

The third proportional to 179.38 and 253.94 is: 359.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    179.38 : 253.94 = 253.94 : x
  2. Step 2: Convert to fraction form
    179.38/253.94 = 253.94/x
  3. Step 3: Cross multiply
    179.38x = 253.94 × 253.94
  4. Step 4: Simplify right side
    179.38x = 64,484.25
  5. Step 5: Solve for x
    x = 64,484.25/179.38
  6. Step 6: Final answer
    x = 359.49

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Why These Related Problems?

These problems maintain the same ratio (1.42) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.