Finding the Fourth Proportional to 313,861.19, 432,976.19 and 186,446.57
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Solution
The fourth proportional to 313,861.19, 432,976.19 and 186,446.57 is: 257,205.82
Step by Step Solution
- Step 1: Write the proportion equation
313,861.19 : 432,976.19 = 186,446.57 : x - Step 2: Convert to fraction form
313,861.19/432,976.19 = 186,446.57/x - Step 3: Cross multiply
313,861.19x = 432,976.19 × 186,446.57 - Step 4: Simplify right side
313,861.19x = 80,726,922,420.05 - Step 5: Solve for x
x = 80,726,922,420.05/313,861.19 - Step 6: Final answer
x = 257,205.82
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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.