Finding the Fourth Proportional to 198,687.24, 274,247.50 and 113,860.80
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Solution
The fourth proportional to 198,687.24, 274,247.50 and 113,860.80 is: 157,161.78
Step by Step Solution
- Step 1: Write the proportion equation
198,687.24 : 274,247.50 = 113,860.80 : x - Step 2: Convert to fraction form
198,687.24/274,247.50 = 113,860.80/x - Step 3: Cross multiply
198,687.24x = 274,247.50 × 113,860.80 - Step 4: Simplify right side
198,687.24x = 31,226,039,748 - Step 5: Solve for x
x = 31,226,039,748/198,687.24 - Step 6: Final answer
x = 157,161.78
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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.