Finding the Fourth Proportional to 198,194.64, 273,394.21 and 126,493.84
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Solution
The fourth proportional to 198,194.64, 273,394.21 and 126,493.84 is: 174,488.49
Step by Step Solution
- Step 1: Write the proportion equation
198,194.64 : 273,394.21 = 126,493.84 : x - Step 2: Convert to fraction form
198,194.64/273,394.21 = 126,493.84/x - Step 3: Cross multiply
198,194.64x = 273,394.21 × 126,493.84 - Step 4: Simplify right side
198,194.64x = 34,582,683,456.67 - Step 5: Solve for x
x = 34,582,683,456.67/198,194.64 - Step 6: Final answer
x = 174,488.49
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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.