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Finding the Fourth Proportional to 352,679.82, 486,728.22 and 199,744.80

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Solution

The fourth proportional to 352,679.82, 486,728.22 and 199,744.80 is: 275,664.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,679.82 : 486,728.22 = 199,744.80 : x
  2. Step 2: Convert to fraction form
    352,679.82/486,728.22 = 199,744.80/x
  3. Step 3: Cross multiply
    352,679.82x = 486,728.22 × 199,744.80
  4. Step 4: Simplify right side
    352,679.82x = 97,221,430,958.26
  5. Step 5: Solve for x
    x = 97,221,430,958.26/352,679.82
  6. Step 6: Final answer
    x = 275,664.85

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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.