Finding the Fourth Proportional to 311,575.40, 467,363.10 and 192,861.80
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Solution
The fourth proportional to 311,575.40, 467,363.10 and 192,861.80 is: 289,292.70
Step by Step Solution
- Step 1: Write the proportion equation
311,575.40 : 467,363.10 = 192,861.80 : x - Step 2: Convert to fraction form
311,575.40/467,363.10 = 192,861.80/x - Step 3: Cross multiply
311,575.40x = 467,363.10 × 192,861.80 - Step 4: Simplify right side
311,575.40x = 90,136,488,719.58 - Step 5: Solve for x
x = 90,136,488,719.58/311,575.40 - Step 6: Final answer
x = 289,292.70
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1.5x scale
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.