Finding the Fourth Proportional to 308,120.87, 425,228.81 and 170,296.84
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Solution
The fourth proportional to 308,120.87, 425,228.81 and 170,296.84 is: 235,021.80
Step by Step Solution
- Step 1: Write the proportion equation
308,120.87 : 425,228.81 = 170,296.84 : x - Step 2: Convert to fraction form
308,120.87/425,228.81 = 170,296.84/x - Step 3: Cross multiply
308,120.87x = 425,228.81 × 170,296.84 - Step 4: Simplify right side
308,120.87x = 72,415,122,619.96 - Step 5: Solve for x
x = 72,415,122,619.96/308,120.87 - Step 6: Final answer
x = 235,021.80
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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.