Finding the Fourth Proportional to 198,741.62, 274,263.22 and 113,859.02
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Solution
The fourth proportional to 198,741.62, 274,263.22 and 113,859.02 is: 157,125.32
Step by Step Solution
- Step 1: Write the proportion equation
198,741.62 : 274,263.22 = 113,859.02 : x - Step 2: Convert to fraction form
198,741.62/274,263.22 = 113,859.02/x - Step 3: Cross multiply
198,741.62x = 274,263.22 × 113,859.02 - Step 4: Simplify right side
198,741.62x = 31,227,341,451.24 - Step 5: Solve for x
x = 31,227,341,451.24/198,741.62 - Step 6: Final answer
x = 157,125.32
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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.