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Finding the Third Proportional to 89,987 and 193,798

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Solution

The third proportional to 89,987 and 193,798 is: 417,367.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,987 : 193,798 = 193,798 : x
  2. Step 2: Convert to fraction form
    89,987/193,798 = 193,798/x
  3. Step 3: Cross multiply
    89,987x = 193,798 × 193,798
  4. Step 4: Simplify right side
    89,987x = 37,557,664,804
  5. Step 5: Solve for x
    x = 37,557,664,804/89,987
  6. Step 6: Final answer
    x = 417,367.67

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.