Finding the Fourth Proportional to 198,675.99, 274,167.09 and 112,642.92
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Solution
The fourth proportional to 198,675.99, 274,167.09 and 112,642.92 is: 155,443.95
Step by Step Solution
- Step 1: Write the proportion equation
198,675.99 : 274,167.09 = 112,642.92 : x - Step 2: Convert to fraction form
198,675.99/274,167.09 = 112,642.92/x - Step 3: Cross multiply
198,675.99x = 274,167.09 × 112,642.92 - Step 4: Simplify right side
198,675.99x = 30,882,981,585.50 - Step 5: Solve for x
x = 30,882,981,585.50/198,675.99 - Step 6: Final answer
x = 155,443.95
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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.