Finding the Fourth Proportional to 218,763.75, 301,894.18 and 118,161.75
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Solution
The fourth proportional to 218,763.75, 301,894.18 and 118,161.75 is: 163,063.33
Step by Step Solution
- Step 1: Write the proportion equation
218,763.75 : 301,894.18 = 118,161.75 : x - Step 2: Convert to fraction form
218,763.75/301,894.18 = 118,161.75/x - Step 3: Cross multiply
218,763.75x = 301,894.18 × 118,161.75 - Step 4: Simplify right side
218,763.75x = 35,672,344,623.62 - Step 5: Solve for x
x = 35,672,344,623.62/218,763.75 - Step 6: Final answer
x = 163,063.33
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.