Finding the Fourth Proportional to 198,618.28, 274,094.40 and 107,974.96
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Solution
The fourth proportional to 198,618.28, 274,094.40 and 107,974.96 is: 149,006.08
Step by Step Solution
- Step 1: Write the proportion equation
198,618.28 : 274,094.40 = 107,974.96 : x - Step 2: Convert to fraction form
198,618.28/274,094.40 = 107,974.96/x - Step 3: Cross multiply
198,618.28x = 274,094.40 × 107,974.96 - Step 4: Simplify right side
198,618.28x = 29,595,331,876.22 - Step 5: Solve for x
x = 29,595,331,876.22/198,618.28 - Step 6: Final answer
x = 149,006.08
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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.