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Finding the Third Proportional to 40,698 and 87,534

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Solution

The third proportional to 40,698 and 87,534 is: 188,269.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,698 : 87,534 = 87,534 : x
  2. Step 2: Convert to fraction form
    40,698/87,534 = 87,534/x
  3. Step 3: Cross multiply
    40,698x = 87,534 × 87,534
  4. Step 4: Simplify right side
    40,698x = 7,662,201,156
  5. Step 5: Solve for x
    x = 7,662,201,156/40,698
  6. Step 6: Final answer
    x = 188,269.72

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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.