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Finding the Third Proportional to 55,386 and 121,843.13

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Solution

The third proportional to 55,386 and 121,843.13 is: 268,041.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,386 : 121,843.13 = 121,843.13 : x
  2. Step 2: Convert to fraction form
    55,386/121,843.13 = 121,843.13/x
  3. Step 3: Cross multiply
    55,386x = 121,843.13 × 121,843.13
  4. Step 4: Simplify right side
    55,386x = 14,845,747,109.77
  5. Step 5: Solve for x
    x = 14,845,747,109.77/55,386
  6. Step 6: Final answer
    x = 268,041.51

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.