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Finding the Third Proportional to 153.75 and 338

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Solution

The third proportional to 153.75 and 338 is: 743.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    153.75 : 338 = 338 : x
  2. Step 2: Convert to fraction form
    153.75/338 = 338/x
  3. Step 3: Cross multiply
    153.75x = 338 × 338
  4. Step 4: Simplify right side
    153.75x = 114,244
  5. Step 5: Solve for x
    x = 114,244/153.75
  6. Step 6: Final answer
    x = 743.05

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These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.