Finding the Fourth Proportional to 279,786.12, 419,794.44 and 205,286.08
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Solution
The fourth proportional to 279,786.12, 419,794.44 and 205,286.08 is: 308,013.69
Step by Step Solution
- Step 1: Write the proportion equation
279,786.12 : 419,794.44 = 205,286.08 : x - Step 2: Convert to fraction form
279,786.12/419,794.44 = 205,286.08/x - Step 3: Cross multiply
279,786.12x = 419,794.44 × 205,286.08 - Step 4: Simplify right side
279,786.12x = 86,177,954,993.40 - Step 5: Solve for x
x = 86,177,954,993.40/279,786.12 - Step 6: Final answer
x = 308,013.69
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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.