Finding the Fourth Proportional to 313,745.85, 470,629.83 and 100,485.99
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Solution
The fourth proportional to 313,745.85, 470,629.83 and 100,485.99 is: 150,732.53
Step by Step Solution
- Step 1: Write the proportion equation
313,745.85 : 470,629.83 = 100,485.99 : x - Step 2: Convert to fraction form
313,745.85/470,629.83 = 100,485.99/x - Step 3: Cross multiply
313,745.85x = 470,629.83 × 100,485.99 - Step 4: Simplify right side
313,745.85x = 47,291,704,391.08 - Step 5: Solve for x
x = 47,291,704,391.08/313,745.85 - Step 6: Final answer
x = 150,732.53
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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.