Home / 351,942.98-485,503.07-222,664.55

Finding the Fourth Proportional to 351,942.98, 485,503.07 and 222,664.55

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Solution

The fourth proportional to 351,942.98, 485,503.07 and 222,664.55 is: 307,164.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,942.98 : 485,503.07 = 222,664.55 : x
  2. Step 2: Convert to fraction form
    351,942.98/485,503.07 = 222,664.55/x
  3. Step 3: Cross multiply
    351,942.98x = 485,503.07 × 222,664.55
  4. Step 4: Simplify right side
    351,942.98x = 108,104,319,064.33
  5. Step 5: Solve for x
    x = 108,104,319,064.33/351,942.98
  6. Step 6: Final answer
    x = 307,164.30

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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.