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Finding the Fourth Proportional to 354,682.72, 489,473.96 and 193,546.62

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Solution

The fourth proportional to 354,682.72, 489,473.96 and 193,546.62 is: 267,100.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,682.72 : 489,473.96 = 193,546.62 : x
  2. Step 2: Convert to fraction form
    354,682.72/489,473.96 = 193,546.62/x
  3. Step 3: Cross multiply
    354,682.72x = 489,473.96 × 193,546.62
  4. Step 4: Simplify right side
    354,682.72x = 94,736,030,536.02
  5. Step 5: Solve for x
    x = 94,736,030,536.02/354,682.72
  6. Step 6: Final answer
    x = 267,100.78

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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.