Finding the Fourth Proportional to 203,998.40, 305,997.60 and 157,342.40
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Solution
The fourth proportional to 203,998.40, 305,997.60 and 157,342.40 is: 236,013.60
Step by Step Solution
- Step 1: Write the proportion equation
203,998.40 : 305,997.60 = 157,342.40 : x - Step 2: Convert to fraction form
203,998.40/305,997.60 = 157,342.40/x - Step 3: Cross multiply
203,998.40x = 305,997.60 × 157,342.40 - Step 4: Simplify right side
203,998.40x = 48,146,396,778.24 - Step 5: Solve for x
x = 48,146,396,778.24/203,998.40 - Step 6: Final answer
x = 236,013.60
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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.