Finding the Fourth Proportional to 198,518.05, 297,894.26 and 78,586.75
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Solution
The fourth proportional to 198,518.05, 297,894.26 and 78,586.75 is: 117,926.51
Step by Step Solution
- Step 1: Write the proportion equation
198,518.05 : 297,894.26 = 78,586.75 : x - Step 2: Convert to fraction form
198,518.05/297,894.26 = 78,586.75/x - Step 3: Cross multiply
198,518.05x = 297,894.26 × 78,586.75 - Step 4: Simplify right side
198,518.05x = 23,410,541,737.06 - Step 5: Solve for x
x = 23,410,541,737.06/198,518.05 - Step 6: Final answer
x = 117,926.51
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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.