Finding the Fourth Proportional to 198,686.37, 274,178.84 and 112,651.14
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Solution
The fourth proportional to 198,686.37, 274,178.84 and 112,651.14 is: 155,453.84
Step by Step Solution
- Step 1: Write the proportion equation
198,686.37 : 274,178.84 = 112,651.14 : x - Step 2: Convert to fraction form
198,686.37/274,178.84 = 112,651.14/x - Step 3: Cross multiply
198,686.37x = 274,178.84 × 112,651.14 - Step 4: Simplify right side
198,686.37x = 30,886,558,446.20 - Step 5: Solve for x
x = 30,886,558,446.20/198,686.37 - Step 6: Final answer
x = 155,453.84
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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.