Finding the Fourth Proportional to 198,669.23, 274,163.87 and 108,025.12
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Solution
The fourth proportional to 198,669.23, 274,163.87 and 108,025.12 is: 149,074.85
Step by Step Solution
- Step 1: Write the proportion equation
198,669.23 : 274,163.87 = 108,025.12 : x - Step 2: Convert to fraction form
198,669.23/274,163.87 = 108,025.12/x - Step 3: Cross multiply
198,669.23x = 274,163.87 × 108,025.12 - Step 4: Simplify right side
198,669.23x = 29,616,584,956.41 - Step 5: Solve for x
x = 29,616,584,956.41/198,669.23 - Step 6: Final answer
x = 149,074.85
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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.