Finding the Fourth Proportional to 198,678.99, 274,171.23 and 112,645.92
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Solution
The fourth proportional to 198,678.99, 274,171.23 and 112,645.92 is: 155,448.09
Step by Step Solution
- Step 1: Write the proportion equation
198,678.99 : 274,171.23 = 112,645.92 : x - Step 2: Convert to fraction form
198,678.99/274,171.23 = 112,645.92/x - Step 3: Cross multiply
198,678.99x = 274,171.23 × 112,645.92 - Step 4: Simplify right side
198,678.99x = 30,884,270,440.88 - Step 5: Solve for x
x = 30,884,270,440.88/198,678.99 - Step 6: Final answer
x = 155,448.09
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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.