Finding the Fourth Proportional to 135,998.40, 203,997.60 and 135,076.80
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Solution
The fourth proportional to 135,998.40, 203,997.60 and 135,076.80 is: 202,615.20
Step by Step Solution
- Step 1: Write the proportion equation
135,998.40 : 203,997.60 = 135,076.80 : x - Step 2: Convert to fraction form
135,998.40/203,997.60 = 135,076.80/x - Step 3: Cross multiply
135,998.40x = 203,997.60 × 135,076.80 - Step 4: Simplify right side
135,998.40x = 27,555,343,015.68 - Step 5: Solve for x
x = 27,555,343,015.68/135,998.40 - Step 6: Final answer
x = 202,615.20
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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.