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Finding the Third Proportional to 69,280 and 92,800

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Solution

The third proportional to 69,280 and 92,800 is: 124,304.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,280 : 92,800 = 92,800 : x
  2. Step 2: Convert to fraction form
    69,280/92,800 = 92,800/x
  3. Step 3: Cross multiply
    69,280x = 92,800 × 92,800
  4. Step 4: Simplify right side
    69,280x = 8,611,840,000
  5. Step 5: Solve for x
    x = 8,611,840,000/69,280
  6. Step 6: Final answer
    x = 124,304.85

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Why These Related Problems?

These problems maintain the same ratio (1.34) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.