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Finding the Third Proportional to 55,512.21 and 121,566.45

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Solution

The third proportional to 55,512.21 and 121,566.45 is: 266,218.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,512.21 : 121,566.45 = 121,566.45 : x
  2. Step 2: Convert to fraction form
    55,512.21/121,566.45 = 121,566.45/x
  3. Step 3: Cross multiply
    55,512.21x = 121,566.45 × 121,566.45
  4. Step 4: Simplify right side
    55,512.21x = 14,778,400,625.92
  5. Step 5: Solve for x
    x = 14,778,400,625.92/55,512.21
  6. Step 6: Final answer
    x = 266,218.92

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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.