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Finding the Third Proportional to 32,990 and 77,800

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Solution

The third proportional to 32,990 and 77,800 is: 183,474.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,990 : 77,800 = 77,800 : x
  2. Step 2: Convert to fraction form
    32,990/77,800 = 77,800/x
  3. Step 3: Cross multiply
    32,990x = 77,800 × 77,800
  4. Step 4: Simplify right side
    32,990x = 6,052,840,000
  5. Step 5: Solve for x
    x = 6,052,840,000/32,990
  6. Step 6: Final answer
    x = 183,474.99

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Why These Related Problems?

These problems maintain the same ratio (2.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.