Finding the Fourth Proportional to 313,441.75, 470,161.60 and 113,761.87
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Solution
The fourth proportional to 313,441.75, 470,161.60 and 113,761.87 is: 170,642.43
Step by Step Solution
- Step 1: Write the proportion equation
313,441.75 : 470,161.60 = 113,761.87 : x - Step 2: Convert to fraction form
313,441.75/470,161.60 = 113,761.87/x - Step 3: Cross multiply
313,441.75x = 470,161.60 × 113,761.87 - Step 4: Simplify right side
313,441.75x = 53,486,462,818.19 - Step 5: Solve for x
x = 53,486,462,818.19/313,441.75 - Step 6: Final answer
x = 170,642.43
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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.