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Finding the Third Proportional to 55,550 and 121,261

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Solution

The third proportional to 55,550 and 121,261 is: 264,702.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,550 : 121,261 = 121,261 : x
  2. Step 2: Convert to fraction form
    55,550/121,261 = 121,261/x
  3. Step 3: Cross multiply
    55,550x = 121,261 × 121,261
  4. Step 4: Simplify right side
    55,550x = 14,704,230,121
  5. Step 5: Solve for x
    x = 14,704,230,121/55,550
  6. Step 6: Final answer
    x = 264,702.61

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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.