Finding the Fourth Proportional to 198,355.62, 273,724.78 and 107,709.94
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Solution
The fourth proportional to 198,355.62, 273,724.78 and 107,709.94 is: 148,636.47
Step by Step Solution
- Step 1: Write the proportion equation
198,355.62 : 273,724.78 = 107,709.94 : x - Step 2: Convert to fraction form
198,355.62/273,724.78 = 107,709.94/x - Step 3: Cross multiply
198,355.62x = 273,724.78 × 107,709.94 - Step 4: Simplify right side
198,355.62x = 29,482,879,630.31 - Step 5: Solve for x
x = 29,482,879,630.31/198,355.62 - Step 6: Final answer
x = 148,636.47
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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.