Finding the Fourth Proportional to 206,821.80, 310,232.70 and 154,333.80
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Solution
The fourth proportional to 206,821.80, 310,232.70 and 154,333.80 is: 231,500.70
Step by Step Solution
- Step 1: Write the proportion equation
206,821.80 : 310,232.70 = 154,333.80 : x - Step 2: Convert to fraction form
206,821.80/310,232.70 = 154,333.80/x - Step 3: Cross multiply
206,821.80x = 310,232.70 × 154,333.80 - Step 4: Simplify right side
206,821.80x = 47,879,391,475.26 - Step 5: Solve for x
x = 47,879,391,475.26/206,821.80 - Step 6: Final answer
x = 231,500.70
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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.