Home / 206,450.37-309,705.93-73,319.18

Finding the Fourth Proportional to 206,450.37, 309,705.93 and 73,319.18

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Solution

The fourth proportional to 206,450.37, 309,705.93 and 73,319.18 is: 109,989.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,450.37 : 309,705.93 = 73,319.18 : x
  2. Step 2: Convert to fraction form
    206,450.37/309,705.93 = 73,319.18/x
  3. Step 3: Cross multiply
    206,450.37x = 309,705.93 × 73,319.18
  4. Step 4: Simplify right side
    206,450.37x = 22,707,383,280.21
  5. Step 5: Solve for x
    x = 22,707,383,280.21/206,450.37
  6. Step 6: Final answer
    x = 109,989.55

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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.