Finding the Fourth Proportional to 218,047.14, 327,197.61 and 91,678.23
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Solution
The fourth proportional to 218,047.14, 327,197.61 and 91,678.23 is: 137,570.70
Step by Step Solution
- Step 1: Write the proportion equation
218,047.14 : 327,197.61 = 91,678.23 : x - Step 2: Convert to fraction form
218,047.14/327,197.61 = 91,678.23/x - Step 3: Cross multiply
218,047.14x = 327,197.61 × 91,678.23 - Step 4: Simplify right side
218,047.14x = 29,996,897,745.03 - Step 5: Solve for x
x = 29,996,897,745.03/218,047.14 - Step 6: Final answer
x = 137,570.70
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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.