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Finding the Fourth Proportional to 354,917.57, 489,797.82 and 193,784.87

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Solution

The fourth proportional to 354,917.57, 489,797.82 and 193,784.87 is: 267,429.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,917.57 : 489,797.82 = 193,784.87 : x
  2. Step 2: Convert to fraction form
    354,917.57/489,797.82 = 193,784.87/x
  3. Step 3: Cross multiply
    354,917.57x = 489,797.82 × 193,784.87
  4. Step 4: Simplify right side
    354,917.57x = 94,915,404,425.99
  5. Step 5: Solve for x
    x = 94,915,404,425.99/354,917.57
  6. Step 6: Final answer
    x = 267,429.44

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1.5x scale

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.