Finding the Fourth Proportional to 393,876.96, 543,551.76 and 224,107.44
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Solution
The fourth proportional to 393,876.96, 543,551.76 and 224,107.44 is: 309,269.15
Step by Step Solution
- Step 1: Write the proportion equation
393,876.96 : 543,551.76 = 224,107.44 : x - Step 2: Convert to fraction form
393,876.96/543,551.76 = 224,107.44/x - Step 3: Cross multiply
393,876.96x = 543,551.76 × 224,107.44 - Step 4: Simplify right side
393,876.96x = 121,813,993,441.09 - Step 5: Solve for x
x = 121,813,993,441.09/393,876.96 - Step 6: Final answer
x = 309,269.15
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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.