Finding the Fourth Proportional to 198,193.11, 297,335.07 and 85,892.19
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Solution
The fourth proportional to 198,193.11, 297,335.07 and 85,892.19 is: 128,857.96
Step by Step Solution
- Step 1: Write the proportion equation
198,193.11 : 297,335.07 = 85,892.19 : x - Step 2: Convert to fraction form
198,193.11/297,335.07 = 85,892.19/x - Step 3: Cross multiply
198,193.11x = 297,335.07 × 85,892.19 - Step 4: Simplify right side
198,193.11x = 25,538,760,326.10 - Step 5: Solve for x
x = 25,538,760,326.10/198,193.11 - Step 6: Final answer
x = 128,857.96
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.