Finding the Fourth Proportional to 198,202.42, 273,519.53 and 113,321.26
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Solution
The fourth proportional to 198,202.42, 273,519.53 and 113,321.26 is: 156,383.45
Step by Step Solution
- Step 1: Write the proportion equation
198,202.42 : 273,519.53 = 113,321.26 : x - Step 2: Convert to fraction form
198,202.42/273,519.53 = 113,321.26/x - Step 3: Cross multiply
198,202.42x = 273,519.53 × 113,321.26 - Step 4: Simplify right side
198,202.42x = 30,995,577,774.21 - Step 5: Solve for x
x = 30,995,577,774.21/198,202.42 - Step 6: Final answer
x = 156,383.45
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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.