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Finding the Fourth Proportional to 354,405.54, 489,091.46 and 193,269.41

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Solution

The fourth proportional to 354,405.54, 489,091.46 and 193,269.41 is: 266,718.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,405.54 : 489,091.46 = 193,269.41 : x
  2. Step 2: Convert to fraction form
    354,405.54/489,091.46 = 193,269.41/x
  3. Step 3: Cross multiply
    354,405.54x = 489,091.46 × 193,269.41
  4. Step 4: Simplify right side
    354,405.54x = 94,526,414,498.43
  5. Step 5: Solve for x
    x = 94,526,414,498.43/354,405.54
  6. Step 6: Final answer
    x = 266,718.22

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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.