Finding the Fourth Proportional to 284,049.44, 391,993.84 and 156,736.88
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Solution
The fourth proportional to 284,049.44, 391,993.84 and 156,736.88 is: 216,299.99
Step by Step Solution
- Step 1: Write the proportion equation
284,049.44 : 391,993.84 = 156,736.88 : x - Step 2: Convert to fraction form
284,049.44/391,993.84 = 156,736.88/x - Step 3: Cross multiply
284,049.44x = 391,993.84 × 156,736.88 - Step 4: Simplify right side
284,049.44x = 61,439,891,460.82 - Step 5: Solve for x
x = 61,439,891,460.82/284,049.44 - Step 6: Final answer
x = 216,299.99
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1.5x scale
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.