Finding the Fourth Proportional to 213,523.20, 320,313.60 and 73,324.80
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Solution
The fourth proportional to 213,523.20, 320,313.60 and 73,324.80 is: 109,997.09
Step by Step Solution
- Step 1: Write the proportion equation
213,523.20 : 320,313.60 = 73,324.80 : x - Step 2: Convert to fraction form
213,523.20/320,313.60 = 73,324.80/x - Step 3: Cross multiply
213,523.20x = 320,313.60 × 73,324.80 - Step 4: Simplify right side
213,523.20x = 23,486,930,657.28 - Step 5: Solve for x
x = 23,486,930,657.28/213,523.20 - Step 6: Final answer
x = 109,997.09
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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.