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Finding the Third Proportional to 102,961.55 and 210,940.45

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Solution

The third proportional to 102,961.55 and 210,940.45 is: 432,160.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,961.55 : 210,940.45 = 210,940.45 : x
  2. Step 2: Convert to fraction form
    102,961.55/210,940.45 = 210,940.45/x
  3. Step 3: Cross multiply
    102,961.55x = 210,940.45 × 210,940.45
  4. Step 4: Simplify right side
    102,961.55x = 44,495,874,764.58
  5. Step 5: Solve for x
    x = 44,495,874,764.58/102,961.55
  6. Step 6: Final answer
    x = 432,160.12

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Why These Related Problems?

These problems maintain the same ratio (2.05) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.