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Finding the Third Proportional to 157.88 and 238.88

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Solution

The third proportional to 157.88 and 238.88 is: 361.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    157.88 : 238.88 = 238.88 : x
  2. Step 2: Convert to fraction form
    157.88/238.88 = 238.88/x
  3. Step 3: Cross multiply
    157.88x = 238.88 × 238.88
  4. Step 4: Simplify right side
    157.88x = 57,061.27
  5. Step 5: Solve for x
    x = 57,061.27/157.88
  6. Step 6: Final answer
    x = 361.43

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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.