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Finding the Third Proportional to 63.56 and 139.44

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Solution

The third proportional to 63.56 and 139.44 is: 305.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    63.56 : 139.44 = 139.44 : x
  2. Step 2: Convert to fraction form
    63.56/139.44 = 139.44/x
  3. Step 3: Cross multiply
    63.56x = 139.44 × 139.44
  4. Step 4: Simplify right side
    63.56x = 19,442.82
  5. Step 5: Solve for x
    x = 19,442.82/63.56
  6. Step 6: Final answer
    x = 305.89

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.