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Finding the Third Proportional to 55,485 and 121,351.50

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Solution

The third proportional to 55,485 and 121,351.50 is: 265,408.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,485 : 121,351.50 = 121,351.50 : x
  2. Step 2: Convert to fraction form
    55,485/121,351.50 = 121,351.50/x
  3. Step 3: Cross multiply
    55,485x = 121,351.50 × 121,351.50
  4. Step 4: Simplify right side
    55,485x = 14,726,186,552.25
  5. Step 5: Solve for x
    x = 14,726,186,552.25/55,485
  6. Step 6: Final answer
    x = 265,408.43

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.