Finding the Fourth Proportional to 198,602.28, 274,059.63 and 107,957.79
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Solution
The fourth proportional to 198,602.28, 274,059.63 and 107,957.79 is: 148,975.49
Step by Step Solution
- Step 1: Write the proportion equation
198,602.28 : 274,059.63 = 107,957.79 : x - Step 2: Convert to fraction form
198,602.28/274,059.63 = 107,957.79/x - Step 3: Cross multiply
198,602.28x = 274,059.63 × 107,957.79 - Step 4: Simplify right side
198,602.28x = 29,586,871,983.02 - Step 5: Solve for x
x = 29,586,871,983.02/198,602.28 - Step 6: Final answer
x = 148,975.49
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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.