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Finding the Third Proportional to 0.58 and 1.21

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Solution

The third proportional to 0.58 and 1.21 is: 2.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    0.58 : 1.21 = 1.21 : x
  2. Step 2: Convert to fraction form
    0.58/1.21 = 1.21/x
  3. Step 3: Cross multiply
    0.58x = 1.21 × 1.21
  4. Step 4: Simplify right side
    0.58x = 1.47
  5. Step 5: Solve for x
    x = 1.47/0.58
  6. Step 6: Final answer
    x = 2.54

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Why These Related Problems?

These problems maintain the same ratio (2.09) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.