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Finding the Third Proportional to 55,120 and 119,396

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Solution

The third proportional to 55,120 and 119,396 is: 258,624.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,120 : 119,396 = 119,396 : x
  2. Step 2: Convert to fraction form
    55,120/119,396 = 119,396/x
  3. Step 3: Cross multiply
    55,120x = 119,396 × 119,396
  4. Step 4: Simplify right side
    55,120x = 14,255,404,816
  5. Step 5: Solve for x
    x = 14,255,404,816/55,120
  6. Step 6: Final answer
    x = 258,624.91

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.