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Finding the Fourth Proportional to 354,965.50, 489,849.90 and 193,820.44

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Solution

The fourth proportional to 354,965.50, 489,849.90 and 193,820.44 is: 267,470.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,965.50 : 489,849.90 = 193,820.44 : x
  2. Step 2: Convert to fraction form
    354,965.50/489,849.90 = 193,820.44/x
  3. Step 3: Cross multiply
    354,965.50x = 489,849.90 × 193,820.44
  4. Step 4: Simplify right side
    354,965.50x = 94,942,923,151.96
  5. Step 5: Solve for x
    x = 94,942,923,151.96/354,965.50
  6. Step 6: Final answer
    x = 267,470.85

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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.