Finding the Fourth Proportional to 311,581.39, 467,450.81 and 86,941.67
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Solution
The fourth proportional to 311,581.39, 467,450.81 and 86,941.67 is: 130,434.47
Step by Step Solution
- Step 1: Write the proportion equation
311,581.39 : 467,450.81 = 86,941.67 : x - Step 2: Convert to fraction form
311,581.39/467,450.81 = 86,941.67/x - Step 3: Cross multiply
311,581.39x = 467,450.81 × 86,941.67 - Step 4: Simplify right side
311,581.39x = 40,640,954,064.25 - Step 5: Solve for x
x = 40,640,954,064.25/311,581.39 - Step 6: Final answer
x = 130,434.47
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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.