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Finding the Fourth Proportional to 354,724, 489,529.44 and 193,589.43

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Solution

The fourth proportional to 354,724, 489,529.44 and 193,589.43 is: 267,159.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,724 : 489,529.44 = 193,589.43 : x
  2. Step 2: Convert to fraction form
    354,724/489,529.44 = 193,589.43/x
  3. Step 3: Cross multiply
    354,724x = 489,529.44 × 193,589.43
  4. Step 4: Simplify right side
    354,724x = 94,767,726,481.64
  5. Step 5: Solve for x
    x = 94,767,726,481.64/354,724
  6. Step 6: Final answer
    x = 267,159.05

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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.