Finding the Fourth Proportional to 313,993.26, 470,979.36 and 136,500.19
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Solution
The fourth proportional to 313,993.26, 470,979.36 and 136,500.19 is: 204,745.70
Step by Step Solution
- Step 1: Write the proportion equation
313,993.26 : 470,979.36 = 136,500.19 : x - Step 2: Convert to fraction form
313,993.26/470,979.36 = 136,500.19/x - Step 3: Cross multiply
313,993.26x = 470,979.36 × 136,500.19 - Step 4: Simplify right side
313,993.26x = 64,288,770,948.63 - Step 5: Solve for x
x = 64,288,770,948.63/313,993.26 - Step 6: Final answer
x = 204,745.70
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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.