Finding the Fourth Proportional to 819,161.31, 1,228,740.91 and 220,122.48
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Solution
The fourth proportional to 819,161.31, 1,228,740.91 and 220,122.48 is: 330,183.44
Step by Step Solution
- Step 1: Write the proportion equation
819,161.31 : 1,228,740.91 = 220,122.48 : x - Step 2: Convert to fraction form
819,161.31/1,228,740.91 = 220,122.48/x - Step 3: Cross multiply
819,161.31x = 1,228,740.91 × 220,122.48 - Step 4: Simplify right side
819,161.31x = 270,473,500,444.13 - Step 5: Solve for x
x = 270,473,500,444.13/819,161.31 - Step 6: Final answer
x = 330,183.44
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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.