Finding the Fourth Proportional to 198,629.49, 274,133.91 and 112,602.48
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Solution
The fourth proportional to 198,629.49, 274,133.91 and 112,602.48 is: 155,405.72
Step by Step Solution
- Step 1: Write the proportion equation
198,629.49 : 274,133.91 = 112,602.48 : x - Step 2: Convert to fraction form
198,629.49/274,133.91 = 112,602.48/x - Step 3: Cross multiply
198,629.49x = 274,133.91 × 112,602.48 - Step 4: Simplify right side
198,629.49x = 30,868,158,118.10 - Step 5: Solve for x
x = 30,868,158,118.10/198,629.49 - Step 6: Final answer
x = 155,405.72
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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.