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Finding the Fourth Proportional to 325,572.57, 489,107.42 and 229,730.43

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Solution

The fourth proportional to 325,572.57, 489,107.42 and 229,730.43 is: 345,123.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,572.57 : 489,107.42 = 229,730.43 : x
  2. Step 2: Convert to fraction form
    325,572.57/489,107.42 = 229,730.43/x
  3. Step 3: Cross multiply
    325,572.57x = 489,107.42 × 229,730.43
  4. Step 4: Simplify right side
    325,572.57x = 112,362,856,764.14
  5. Step 5: Solve for x
    x = 112,362,856,764.14/325,572.57
  6. Step 6: Final answer
    x = 345,123.84

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.