Finding the Fourth Proportional to 216,882.11, 299,297.26 and 121,388.80
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Solution
The fourth proportional to 216,882.11, 299,297.26 and 121,388.80 is: 167,516.52
Step by Step Solution
- Step 1: Write the proportion equation
216,882.11 : 299,297.26 = 121,388.80 : x - Step 2: Convert to fraction form
216,882.11/299,297.26 = 121,388.80/x - Step 3: Cross multiply
216,882.11x = 299,297.26 × 121,388.80 - Step 4: Simplify right side
216,882.11x = 36,331,335,234.69 - Step 5: Solve for x
x = 36,331,335,234.69/216,882.11 - Step 6: Final answer
x = 167,516.52
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.