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Finding the Fourth Proportional to 258,229.67, 386,625.99 and 131,596.88

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Solution

The fourth proportional to 258,229.67, 386,625.99 and 131,596.88 is: 197,029.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,229.67 : 386,625.99 = 131,596.88 : x
  2. Step 2: Convert to fraction form
    258,229.67/386,625.99 = 131,596.88/x
  3. Step 3: Cross multiply
    258,229.67x = 386,625.99 × 131,596.88
  4. Step 4: Simplify right side
    258,229.67x = 50,878,774,010.91
  5. Step 5: Solve for x
    x = 50,878,774,010.91/258,229.67
  6. Step 6: Final answer
    x = 197,029.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.