Finding the Fourth Proportional to 287,423.63, 396,656.84 and 160,099.19
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Solution
The fourth proportional to 287,423.63, 396,656.84 and 160,099.19 is: 220,943.69
Step by Step Solution
- Step 1: Write the proportion equation
287,423.63 : 396,656.84 = 160,099.19 : x - Step 2: Convert to fraction form
287,423.63/396,656.84 = 160,099.19/x - Step 3: Cross multiply
287,423.63x = 396,656.84 × 160,099.19 - Step 4: Simplify right side
287,423.63x = 63,504,436,008.18 - Step 5: Solve for x
x = 63,504,436,008.18/287,423.63 - Step 6: Final answer
x = 220,943.69
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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.