Finding the Fourth Proportional to 308,879.18, 426,232.43 and 171,048.21
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Solution
The fourth proportional to 308,879.18, 426,232.43 and 171,048.21 is: 236,034.99
Step by Step Solution
- Step 1: Write the proportion equation
308,879.18 : 426,232.43 = 171,048.21 : x - Step 2: Convert to fraction form
308,879.18/426,232.43 = 171,048.21/x - Step 3: Cross multiply
308,879.18x = 426,232.43 × 171,048.21 - Step 4: Simplify right side
308,879.18x = 72,906,293,340.21 - Step 5: Solve for x
x = 72,906,293,340.21/308,879.18 - Step 6: Final answer
x = 236,034.99
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.