Finding the Fourth Proportional to 318,023.48, 477,121.26 and 107,661.44
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Solution
The fourth proportional to 318,023.48, 477,121.26 and 107,661.44 is: 161,521.29
Step by Step Solution
- Step 1: Write the proportion equation
318,023.48 : 477,121.26 = 107,661.44 : x - Step 2: Convert to fraction form
318,023.48/477,121.26 = 107,661.44/x - Step 3: Cross multiply
318,023.48x = 477,121.26 × 107,661.44 - Step 4: Simplify right side
318,023.48x = 51,367,561,906.21 - Step 5: Solve for x
x = 51,367,561,906.21/318,023.48 - Step 6: Final answer
x = 161,521.29
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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.