Finding the Fourth Proportional to 198,578.24, 274,039.80 and 107,934.41
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Solution
The fourth proportional to 198,578.24, 274,039.80 and 107,934.41 is: 148,950.48
Step by Step Solution
- Step 1: Write the proportion equation
198,578.24 : 274,039.80 = 107,934.41 : x - Step 2: Convert to fraction form
198,578.24/274,039.80 = 107,934.41/x - Step 3: Cross multiply
198,578.24x = 274,039.80 × 107,934.41 - Step 4: Simplify right side
198,578.24x = 29,578,322,759.32 - Step 5: Solve for x
x = 29,578,322,759.32/198,578.24 - Step 6: Final answer
x = 148,950.48
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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.