Finding the Fourth Proportional to 216,609.80, 324,914.70 and 164,121.80
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Solution
The fourth proportional to 216,609.80, 324,914.70 and 164,121.80 is: 246,182.70
Step by Step Solution
- Step 1: Write the proportion equation
216,609.80 : 324,914.70 = 164,121.80 : x - Step 2: Convert to fraction form
216,609.80/324,914.70 = 164,121.80/x - Step 3: Cross multiply
216,609.80x = 324,914.70 × 164,121.80 - Step 4: Simplify right side
216,609.80x = 53,325,585,410.46 - Step 5: Solve for x
x = 53,325,585,410.46/216,609.80 - Step 6: Final answer
x = 246,182.70
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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.