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Finding the Fourth Proportional to 354,672.43, 489,449.36 and 193,530.83

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Solution

The fourth proportional to 354,672.43, 489,449.36 and 193,530.83 is: 267,073.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,672.43 : 489,449.36 = 193,530.83 : x
  2. Step 2: Convert to fraction form
    354,672.43/489,449.36 = 193,530.83/x
  3. Step 3: Cross multiply
    354,672.43x = 489,449.36 × 193,530.83
  4. Step 4: Simplify right side
    354,672.43x = 94,723,538,920.35
  5. Step 5: Solve for x
    x = 94,723,538,920.35/354,672.43
  6. Step 6: Final answer
    x = 267,073.31

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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.