Finding the Fourth Proportional to 218,286.40, 327,469.26 and 90,202.99
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Solution
The fourth proportional to 218,286.40, 327,469.26 and 90,202.99 is: 135,320.87
Step by Step Solution
- Step 1: Write the proportion equation
218,286.40 : 327,469.26 = 90,202.99 : x - Step 2: Convert to fraction form
218,286.40/327,469.26 = 90,202.99/x - Step 3: Cross multiply
218,286.40x = 327,469.26 × 90,202.99 - Step 4: Simplify right side
218,286.40x = 29,538,706,011.29 - Step 5: Solve for x
x = 29,538,706,011.29/218,286.40 - Step 6: Final answer
x = 135,320.87
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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.