Finding the Fourth Proportional to 198,720.64, 274,114.56 and 122,252.80
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Solution
The fourth proportional to 198,720.64, 274,114.56 and 122,252.80 is: 168,635.09
Step by Step Solution
- Step 1: Write the proportion equation
198,720.64 : 274,114.56 = 122,252.80 : x - Step 2: Convert to fraction form
198,720.64/274,114.56 = 122,252.80/x - Step 3: Cross multiply
198,720.64x = 274,114.56 × 122,252.80 - Step 4: Simplify right side
198,720.64x = 33,511,272,480.77 - Step 5: Solve for x
x = 33,511,272,480.77/198,720.64 - Step 6: Final answer
x = 168,635.09
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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.