Finding the Fourth Proportional to 198,192.62, 273,591.15 and 121,724.12
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Solution
The fourth proportional to 198,192.62, 273,591.15 and 121,724.12 is: 168,031.70
Step by Step Solution
- Step 1: Write the proportion equation
198,192.62 : 273,591.15 = 121,724.12 : x - Step 2: Convert to fraction form
198,192.62/273,591.15 = 121,724.12/x - Step 3: Cross multiply
198,192.62x = 273,591.15 × 121,724.12 - Step 4: Simplify right side
198,192.62x = 33,302,641,973.54 - Step 5: Solve for x
x = 33,302,641,973.54/198,192.62 - Step 6: Final answer
x = 168,031.70
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1.5x scale
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.