Finding the Fourth Proportional to 198,729.44, 274,140.16 and 138,194.99
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Solution
The fourth proportional to 198,729.44, 274,140.16 and 138,194.99 is: 190,635.05
Step by Step Solution
- Step 1: Write the proportion equation
198,729.44 : 274,140.16 = 138,194.99 : x - Step 2: Convert to fraction form
198,729.44/274,140.16 = 138,194.99/x - Step 3: Cross multiply
198,729.44x = 274,140.16 × 138,194.99 - Step 4: Simplify right side
198,729.44x = 37,884,794,953.61 - Step 5: Solve for x
x = 37,884,794,953.61/198,729.44 - Step 6: Final answer
x = 190,635.05
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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.