Finding the Fourth Proportional to 206,863.80, 310,295.70 and 154,375.80
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Solution
The fourth proportional to 206,863.80, 310,295.70 and 154,375.80 is: 231,563.70
Step by Step Solution
- Step 1: Write the proportion equation
206,863.80 : 310,295.70 = 154,375.80 : x - Step 2: Convert to fraction form
206,863.80/310,295.70 = 154,375.80/x - Step 3: Cross multiply
206,863.80x = 310,295.70 × 154,375.80 - Step 4: Simplify right side
206,863.80x = 47,902,146,924.06 - Step 5: Solve for x
x = 47,902,146,924.06/206,863.80 - Step 6: Final answer
x = 231,563.70
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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.