Finding the Fourth Proportional to 207,679.63, 311,514.98 and 57,915.93
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Solution
The fourth proportional to 207,679.63, 311,514.98 and 57,915.93 is: 86,872.65
Step by Step Solution
- Step 1: Write the proportion equation
207,679.63 : 311,514.98 = 57,915.93 : x - Step 2: Convert to fraction form
207,679.63/311,514.98 = 57,915.93/x - Step 3: Cross multiply
207,679.63x = 311,514.98 × 57,915.93 - Step 4: Simplify right side
207,679.63x = 18,041,679,775.63 - Step 5: Solve for x
x = 18,041,679,775.63/207,679.63 - Step 6: Final answer
x = 86,872.65
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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.