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Finding the Third Proportional to 89,931.83 and 197,966.21

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Solution

The third proportional to 89,931.83 and 197,966.21 is: 435,781.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,931.83 : 197,966.21 = 197,966.21 : x
  2. Step 2: Convert to fraction form
    89,931.83/197,966.21 = 197,966.21/x
  3. Step 3: Cross multiply
    89,931.83x = 197,966.21 × 197,966.21
  4. Step 4: Simplify right side
    89,931.83x = 39,190,622,219.56
  5. Step 5: Solve for x
    x = 39,190,622,219.56/89,931.83
  6. Step 6: Final answer
    x = 435,781.43

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.