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Finding the Third Proportional to 75.94 and 143.88

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Solution

The third proportional to 75.94 and 143.88 is: 272.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    75.94 : 143.88 = 143.88 : x
  2. Step 2: Convert to fraction form
    75.94/143.88 = 143.88/x
  3. Step 3: Cross multiply
    75.94x = 143.88 × 143.88
  4. Step 4: Simplify right side
    75.94x = 20,700.02
  5. Step 5: Solve for x
    x = 20,700.02/75.94
  6. Step 6: Final answer
    x = 272.59

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Why These Related Problems?

These problems maintain the same ratio (1.89) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.