Finding the Fourth Proportional to 198,517.34, 273,997.14 and 122,102.12
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Solution
The fourth proportional to 198,517.34, 273,997.14 and 122,102.12 is: 168,527.50
Step by Step Solution
- Step 1: Write the proportion equation
198,517.34 : 273,997.14 = 122,102.12 : x - Step 2: Convert to fraction form
198,517.34/273,997.14 = 122,102.12/x - Step 3: Cross multiply
198,517.34x = 273,997.14 × 122,102.12 - Step 4: Simplify right side
198,517.34x = 33,455,631,667.94 - Step 5: Solve for x
x = 33,455,631,667.94/198,517.34 - Step 6: Final answer
x = 168,527.50
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.