Finding the Fourth Proportional to 313,489.80, 470,234.70 and 308,305.80
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Solution
The fourth proportional to 313,489.80, 470,234.70 and 308,305.80 is: 462,458.70
Step by Step Solution
- Step 1: Write the proportion equation
313,489.80 : 470,234.70 = 308,305.80 : x - Step 2: Convert to fraction form
313,489.80/470,234.70 = 308,305.80/x - Step 3: Cross multiply
313,489.80x = 470,234.70 × 308,305.80 - Step 4: Simplify right side
313,489.80x = 144,976,085,371.26 - Step 5: Solve for x
x = 144,976,085,371.26/313,489.80 - Step 6: Final answer
x = 462,458.70
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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.