Home / 258,832.02-388,245.78-71,843.52

Finding the Fourth Proportional to 258,832.02, 388,245.78 and 71,843.52

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Solution

The fourth proportional to 258,832.02, 388,245.78 and 71,843.52 is: 107,764.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,832.02 : 388,245.78 = 71,843.52 : x
  2. Step 2: Convert to fraction form
    258,832.02/388,245.78 = 71,843.52/x
  3. Step 3: Cross multiply
    258,832.02x = 388,245.78 × 71,843.52
  4. Step 4: Simplify right side
    258,832.02x = 27,892,943,460.35
  5. Step 5: Solve for x
    x = 27,892,943,460.35/258,832.02
  6. Step 6: Final answer
    x = 107,764.66

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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.