Finding the Fourth Proportional to 379,857.28, 568,913.52 and 189,734.08
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Solution
The fourth proportional to 379,857.28, 568,913.52 and 189,734.08 is: 284,165.37
Step by Step Solution
- Step 1: Write the proportion equation
379,857.28 : 568,913.52 = 189,734.08 : x - Step 2: Convert to fraction form
379,857.28/568,913.52 = 189,734.08/x - Step 3: Cross multiply
379,857.28x = 568,913.52 × 189,734.08 - Step 4: Simplify right side
379,857.28x = 107,942,283,316.76 - Step 5: Solve for x
x = 107,942,283,316.76/379,857.28 - Step 6: Final answer
x = 284,165.37
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.