Finding the Fourth Proportional to 287,429.43, 396,664.88 and 160,104.99
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Solution
The fourth proportional to 287,429.43, 396,664.88 and 160,104.99 is: 220,951.72
Step by Step Solution
- Step 1: Write the proportion equation
287,429.43 : 396,664.88 = 160,104.99 : x - Step 2: Convert to fraction form
287,429.43/396,664.88 = 160,104.99/x - Step 3: Cross multiply
287,429.43x = 396,664.88 × 160,104.99 - Step 4: Simplify right side
287,429.43x = 63,508,025,845.23 - Step 5: Solve for x
x = 63,508,025,845.23/287,429.43 - Step 6: Final answer
x = 220,951.72
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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.