Finding the Fourth Proportional to 198,983.94, 274,583.98 and 112,944.68
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Solution
The fourth proportional to 198,983.94, 274,583.98 and 112,944.68 is: 155,855.79
Step by Step Solution
- Step 1: Write the proportion equation
198,983.94 : 274,583.98 = 112,944.68 : x - Step 2: Convert to fraction form
198,983.94/274,583.98 = 112,944.68/x - Step 3: Cross multiply
198,983.94x = 274,583.98 × 112,944.68 - Step 4: Simplify right side
198,983.94x = 31,012,799,754.23 - Step 5: Solve for x
x = 31,012,799,754.23/198,983.94 - Step 6: Final answer
x = 155,855.79
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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.