Finding the Fourth Proportional to 220,181.40, 330,272.10 and 218,107.80
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Solution
The fourth proportional to 220,181.40, 330,272.10 and 218,107.80 is: 327,161.70
Step by Step Solution
- Step 1: Write the proportion equation
220,181.40 : 330,272.10 = 218,107.80 : x - Step 2: Convert to fraction form
220,181.40/330,272.10 = 218,107.80/x - Step 3: Cross multiply
220,181.40x = 330,272.10 × 218,107.80 - Step 4: Simplify right side
220,181.40x = 72,034,921,132.38 - Step 5: Solve for x
x = 72,034,921,132.38/220,181.40 - Step 6: Final answer
x = 327,161.70
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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.