Finding the Fourth Proportional to 198,539.67, 297,865.09 and 80,294.05
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Solution
The fourth proportional to 198,539.67, 297,865.09 and 80,294.05 is: 120,463.55
Step by Step Solution
- Step 1: Write the proportion equation
198,539.67 : 297,865.09 = 80,294.05 : x - Step 2: Convert to fraction form
198,539.67/297,865.09 = 80,294.05/x - Step 3: Cross multiply
198,539.67x = 297,865.09 × 80,294.05 - Step 4: Simplify right side
198,539.67x = 23,916,794,429.71 - Step 5: Solve for x
x = 23,916,794,429.71/198,539.67 - Step 6: Final answer
x = 120,463.55
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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.