Finding the Fourth Proportional to 220,105.44, 330,207.12 and 79,860.96
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Solution
The fourth proportional to 220,105.44, 330,207.12 and 79,860.96 is: 119,809.20
Step by Step Solution
- Step 1: Write the proportion equation
220,105.44 : 330,207.12 = 79,860.96 : x - Step 2: Convert to fraction form
220,105.44/330,207.12 = 79,860.96/x - Step 3: Cross multiply
220,105.44x = 330,207.12 × 79,860.96 - Step 4: Simplify right side
220,105.44x = 26,370,657,602.04 - Step 5: Solve for x
x = 26,370,657,602.04/220,105.44 - Step 6: Final answer
x = 119,809.20
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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.