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Finding the Third Proportional to 258,608 and 548,312

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Solution

The third proportional to 258,608 and 548,312 is: 1,162,555.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,608 : 548,312 = 548,312 : x
  2. Step 2: Convert to fraction form
    258,608/548,312 = 548,312/x
  3. Step 3: Cross multiply
    258,608x = 548,312 × 548,312
  4. Step 4: Simplify right side
    258,608x = 300,646,049,344
  5. Step 5: Solve for x
    x = 300,646,049,344/258,608
  6. Step 6: Final answer
    x = 1,162,555.10

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Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.