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Finding the Third Proportional to 1.43 and 2.42

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Solution

The third proportional to 1.43 and 2.42 is: 4.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1.43 : 2.42 = 2.42 : x
  2. Step 2: Convert to fraction form
    1.43/2.42 = 2.42/x
  3. Step 3: Cross multiply
    1.43x = 2.42 × 2.42
  4. Step 4: Simplify right side
    1.43x = 5.87
  5. Step 5: Solve for x
    x = 5.87/1.43
  6. Step 6: Final answer
    x = 4.12

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Why These Related Problems?

These problems maintain the same ratio (1.70) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.