Finding the Fourth Proportional to 313,843.80, 470,765.70 and 274,477.80
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Solution
The fourth proportional to 313,843.80, 470,765.70 and 274,477.80 is: 411,716.70
Step by Step Solution
- Step 1: Write the proportion equation
313,843.80 : 470,765.70 = 274,477.80 : x - Step 2: Convert to fraction form
313,843.80/470,765.70 = 274,477.80/x - Step 3: Cross multiply
313,843.80x = 470,765.70 × 274,477.80 - Step 4: Simplify right side
313,843.80x = 129,214,733,651.46 - Step 5: Solve for x
x = 129,214,733,651.46/313,843.80 - Step 6: Final answer
x = 411,716.70
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1.5x scale
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.