Finding the Fourth Proportional to 198,559.62, 297,987.08 and 80,231.99
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Solution
The fourth proportional to 198,559.62, 297,987.08 and 80,231.99 is: 120,407.64
Step by Step Solution
- Step 1: Write the proportion equation
198,559.62 : 297,987.08 = 80,231.99 : x - Step 2: Convert to fraction form
198,559.62/297,987.08 = 80,231.99/x - Step 3: Cross multiply
198,559.62x = 297,987.08 × 80,231.99 - Step 4: Simplify right side
198,559.62x = 23,908,094,531.59 - Step 5: Solve for x
x = 23,908,094,531.59/198,559.62 - Step 6: Final answer
x = 120,407.64
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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.