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Finding the Fourth Proportional to 373,832.88, 515,879.46 and 343,739.76

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Solution

The fourth proportional to 373,832.88, 515,879.46 and 343,739.76 is: 474,351.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,832.88 : 515,879.46 = 343,739.76 : x
  2. Step 2: Convert to fraction form
    373,832.88/515,879.46 = 343,739.76/x
  3. Step 3: Cross multiply
    373,832.88x = 515,879.46 × 343,739.76
  4. Step 4: Simplify right side
    373,832.88x = 177,328,281,769.33
  5. Step 5: Solve for x
    x = 177,328,281,769.33/373,832.88
  6. Step 6: Final answer
    x = 474,351.75

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.