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Finding the Fourth Proportional to 354,632.92, 489,574.02 and 273,879.16

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Solution

The fourth proportional to 354,632.92, 489,574.02 and 273,879.16 is: 378,092.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,632.92 : 489,574.02 = 273,879.16 : x
  2. Step 2: Convert to fraction form
    354,632.92/489,574.02 = 273,879.16/x
  3. Step 3: Cross multiply
    354,632.92x = 489,574.02 × 273,879.16
  4. Step 4: Simplify right side
    354,632.92x = 134,084,121,158.54
  5. Step 5: Solve for x
    x = 134,084,121,158.54/354,632.92
  6. Step 6: Final answer
    x = 378,092.71

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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.