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Finding the Third Proportional to 120,440.25 and 254,448

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Solution

The third proportional to 120,440.25 and 254,448 is: 537,559.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,440.25 : 254,448 = 254,448 : x
  2. Step 2: Convert to fraction form
    120,440.25/254,448 = 254,448/x
  3. Step 3: Cross multiply
    120,440.25x = 254,448 × 254,448
  4. Step 4: Simplify right side
    120,440.25x = 64,743,784,704
  5. Step 5: Solve for x
    x = 64,743,784,704/120,440.25
  6. Step 6: Final answer
    x = 537,559.37

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Why These Related Problems?

These problems maintain the same ratio (2.11) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.