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Finding the Third Proportional to 19 and 48.88

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Solution

The third proportional to 19 and 48.88 is: 125.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    19 : 48.88 = 48.88 : x
  2. Step 2: Convert to fraction form
    19/48.88 = 48.88/x
  3. Step 3: Cross multiply
    19x = 48.88 × 48.88
  4. Step 4: Simplify right side
    19x = 2,388.77
  5. Step 5: Solve for x
    x = 2,388.77/19
  6. Step 6: Final answer
    x = 125.72

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Why These Related Problems?

These problems maintain the same ratio (2.57) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.