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Finding the Fourth Proportional to 354,142.12, 488,701.87 and 192,993.73

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Solution

The fourth proportional to 354,142.12, 488,701.87 and 192,993.73 is: 266,323.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,142.12 : 488,701.87 = 192,993.73 : x
  2. Step 2: Convert to fraction form
    354,142.12/488,701.87 = 192,993.73/x
  3. Step 3: Cross multiply
    354,142.12x = 488,701.87 × 192,993.73
  4. Step 4: Simplify right side
    354,142.12x = 94,316,394,305.77
  5. Step 5: Solve for x
    x = 94,316,394,305.77/354,142.12
  6. Step 6: Final answer
    x = 266,323.58

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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.