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Finding the Third Proportional to 120,852 and 260,921.25

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Solution

The third proportional to 120,852 and 260,921.25 is: 563,332.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,852 : 260,921.25 = 260,921.25 : x
  2. Step 2: Convert to fraction form
    120,852/260,921.25 = 260,921.25/x
  3. Step 3: Cross multiply
    120,852x = 260,921.25 × 260,921.25
  4. Step 4: Simplify right side
    120,852x = 68,079,898,701.56
  5. Step 5: Solve for x
    x = 68,079,898,701.56/120,852
  6. Step 6: Final answer
    x = 563,332.83

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.