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Finding the Third Proportional to 120,273.75 and 258,314.63

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Solution

The third proportional to 120,273.75 and 258,314.63 is: 554,788.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,273.75 : 258,314.63 = 258,314.63 : x
  2. Step 2: Convert to fraction form
    120,273.75/258,314.63 = 258,314.63/x
  3. Step 3: Cross multiply
    120,273.75x = 258,314.63 × 258,314.63
  4. Step 4: Simplify right side
    120,273.75x = 66,726,445,488.89
  5. Step 5: Solve for x
    x = 66,726,445,488.89/120,273.75
  6. Step 6: Final answer
    x = 554,788.10

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.