Finding the Fourth Proportional to 198,861.24, 274,429.68 and 108,217.92
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Solution
The fourth proportional to 198,861.24, 274,429.68 and 108,217.92 is: 149,341.37
Step by Step Solution
- Step 1: Write the proportion equation
198,861.24 : 274,429.68 = 108,217.92 : x - Step 2: Convert to fraction form
198,861.24/274,429.68 = 108,217.92/x - Step 3: Cross multiply
198,861.24x = 274,429.68 × 108,217.92 - Step 4: Simplify right side
198,861.24x = 29,698,209,155.87 - Step 5: Solve for x
x = 29,698,209,155.87/198,861.24 - Step 6: Final answer
x = 149,341.37
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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.