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Finding the Third Proportional to 55,774.50 and 121,703.50

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Solution

The third proportional to 55,774.50 and 121,703.50 is: 265,564.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,774.50 : 121,703.50 = 121,703.50 : x
  2. Step 2: Convert to fraction form
    55,774.50/121,703.50 = 121,703.50/x
  3. Step 3: Cross multiply
    55,774.50x = 121,703.50 × 121,703.50
  4. Step 4: Simplify right side
    55,774.50x = 14,811,741,912.25
  5. Step 5: Solve for x
    x = 14,811,741,912.25/55,774.50
  6. Step 6: Final answer
    x = 265,564.76

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.