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Finding the Fourth Proportional to 268,771.58, 370,945.60 and 161,400.81

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Solution

The fourth proportional to 268,771.58, 370,945.60 and 161,400.81 is: 222,757.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,771.58 : 370,945.60 = 161,400.81 : x
  2. Step 2: Convert to fraction form
    268,771.58/370,945.60 = 161,400.81/x
  3. Step 3: Cross multiply
    268,771.58x = 370,945.60 × 161,400.81
  4. Step 4: Simplify right side
    268,771.58x = 59,870,920,305.94
  5. Step 5: Solve for x
    x = 59,870,920,305.94/268,771.58
  6. Step 6: Final answer
    x = 222,757.63

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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.