Finding the Fourth Proportional to 362,221.20, 543,331.80 and 326,791.80
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Solution
The fourth proportional to 362,221.20, 543,331.80 and 326,791.80 is: 490,187.70
Step by Step Solution
- Step 1: Write the proportion equation
362,221.20 : 543,331.80 = 326,791.80 : x - Step 2: Convert to fraction form
362,221.20/543,331.80 = 326,791.80/x - Step 3: Cross multiply
362,221.20x = 543,331.80 × 326,791.80 - Step 4: Simplify right side
362,221.20x = 177,556,376,919.24 - Step 5: Solve for x
x = 177,556,376,919.24/362,221.20 - Step 6: Final answer
x = 490,187.70
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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.