Finding the Fourth Proportional to 154,278.26, 231,509.36 and 68,882.49
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Solution
The fourth proportional to 154,278.26, 231,509.36 and 68,882.49 is: 103,364.80
Step by Step Solution
- Step 1: Write the proportion equation
154,278.26 : 231,509.36 = 68,882.49 : x - Step 2: Convert to fraction form
154,278.26/231,509.36 = 68,882.49/x - Step 3: Cross multiply
154,278.26x = 231,509.36 × 68,882.49 - Step 4: Simplify right side
154,278.26x = 15,946,940,830.69 - Step 5: Solve for x
x = 15,946,940,830.69/154,278.26 - Step 6: Final answer
x = 103,364.80
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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.