Finding the Fourth Proportional to 198,928.99, 298,213.52 and 72,539.67
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Solution
The fourth proportional to 198,928.99, 298,213.52 and 72,539.67 is: 108,743.88
Step by Step Solution
- Step 1: Write the proportion equation
198,928.99 : 298,213.52 = 72,539.67 : x - Step 2: Convert to fraction form
198,928.99/298,213.52 = 72,539.67/x - Step 3: Cross multiply
198,928.99x = 298,213.52 × 72,539.67 - Step 4: Simplify right side
198,928.99x = 21,632,309,079.81 - Step 5: Solve for x
x = 21,632,309,079.81/198,928.99 - Step 6: Final answer
x = 108,743.88
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.