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Finding the Third Proportional to 258,079.50 and 555,703.88

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Solution

The third proportional to 258,079.50 and 555,703.88 is: 1,196,556.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,079.50 : 555,703.88 = 555,703.88 : x
  2. Step 2: Convert to fraction form
    258,079.50/555,703.88 = 555,703.88/x
  3. Step 3: Cross multiply
    258,079.50x = 555,703.88 × 555,703.88
  4. Step 4: Simplify right side
    258,079.50x = 308,806,796,690.02
  5. Step 5: Solve for x
    x = 308,806,796,690.02/258,079.50
  6. Step 6: Final answer
    x = 1,196,556.86

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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.