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Finding the Third Proportional to 258,766.88 and 397,185.75

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Solution

The third proportional to 258,766.88 and 397,185.75 is: 609,647.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,766.88 : 397,185.75 = 397,185.75 : x
  2. Step 2: Convert to fraction form
    258,766.88/397,185.75 = 397,185.75/x
  3. Step 3: Cross multiply
    258,766.88x = 397,185.75 × 397,185.75
  4. Step 4: Simplify right side
    258,766.88x = 157,756,520,003.06
  5. Step 5: Solve for x
    x = 157,756,520,003.06/258,766.88
  6. Step 6: Final answer
    x = 609,647.27

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.