Finding the Fourth Proportional to 151,831.86, 227,885.96 and 80,814.09
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Solution
The fourth proportional to 151,831.86, 227,885.96 and 80,814.09 is: 121,294.68
Step by Step Solution
- Step 1: Write the proportion equation
151,831.86 : 227,885.96 = 80,814.09 : x - Step 2: Convert to fraction form
151,831.86/227,885.96 = 80,814.09/x - Step 3: Cross multiply
151,831.86x = 227,885.96 × 80,814.09 - Step 4: Simplify right side
151,831.86x = 18,416,396,481.18 - Step 5: Solve for x
x = 18,416,396,481.18/151,831.86 - Step 6: Final answer
x = 121,294.68
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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.