Finding the Fourth Proportional to 268,843.68, 371,013.12 and 147,993.84
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Solution
The fourth proportional to 268,843.68, 371,013.12 and 147,993.84 is: 204,236.37
Step by Step Solution
- Step 1: Write the proportion equation
268,843.68 : 371,013.12 = 147,993.84 : x - Step 2: Convert to fraction form
268,843.68/371,013.12 = 147,993.84/x - Step 3: Cross multiply
268,843.68x = 371,013.12 × 147,993.84 - Step 4: Simplify right side
268,843.68x = 54,907,656,319.18 - Step 5: Solve for x
x = 54,907,656,319.18/268,843.68 - Step 6: Final answer
x = 204,236.37
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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.