Home / 421,939.14-632,060.64-196,989.18

Finding the Fourth Proportional to 421,939.14, 632,060.64 and 196,989.18

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Solution

The fourth proportional to 421,939.14, 632,060.64 and 196,989.18 is: 295,087.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,939.14 : 632,060.64 = 196,989.18 : x
  2. Step 2: Convert to fraction form
    421,939.14/632,060.64 = 196,989.18/x
  3. Step 3: Cross multiply
    421,939.14x = 632,060.64 × 196,989.18
  4. Step 4: Simplify right side
    421,939.14x = 124,509,107,183.88
  5. Step 5: Solve for x
    x = 124,509,107,183.88/421,939.14
  6. Step 6: Final answer
    x = 295,087.83

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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.