Finding the Fourth Proportional to 276,912.18, 415,220.22 and 143,461.44
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Solution
The fourth proportional to 276,912.18, 415,220.22 and 143,461.44 is: 215,115.46
Step by Step Solution
- Step 1: Write the proportion equation
276,912.18 : 415,220.22 = 143,461.44 : x - Step 2: Convert to fraction form
276,912.18/415,220.22 = 143,461.44/x - Step 3: Cross multiply
276,912.18x = 415,220.22 × 143,461.44 - Step 4: Simplify right side
276,912.18x = 59,568,090,678.32 - Step 5: Solve for x
x = 59,568,090,678.32/276,912.18 - Step 6: Final answer
x = 215,115.46
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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.