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Finding the Third Proportional to 57,408.75 and 121,763.25

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Solution

The third proportional to 57,408.75 and 121,763.25 is: 258,258.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,408.75 : 121,763.25 = 121,763.25 : x
  2. Step 2: Convert to fraction form
    57,408.75/121,763.25 = 121,763.25/x
  3. Step 3: Cross multiply
    57,408.75x = 121,763.25 × 121,763.25
  4. Step 4: Simplify right side
    57,408.75x = 14,826,289,050.56
  5. Step 5: Solve for x
    x = 14,826,289,050.56/57,408.75
  6. Step 6: Final answer
    x = 258,258.35

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Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.