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Finding the Fourth Proportional to 274,340.76, 378,601.02 and 161,162.52

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Solution

The fourth proportional to 274,340.76, 378,601.02 and 161,162.52 is: 222,410.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,340.76 : 378,601.02 = 161,162.52 : x
  2. Step 2: Convert to fraction form
    274,340.76/378,601.02 = 161,162.52/x
  3. Step 3: Cross multiply
    274,340.76x = 378,601.02 × 161,162.52
  4. Step 4: Simplify right side
    274,340.76x = 61,016,294,457.77
  5. Step 5: Solve for x
    x = 61,016,294,457.77/274,340.76
  6. Step 6: Final answer
    x = 222,410.61

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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.