Finding the Fourth Proportional to 281,647.99, 388,689.78 and 160,828.09
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Solution
The fourth proportional to 281,647.99, 388,689.78 and 160,828.09 is: 221,951.65
Step by Step Solution
- Step 1: Write the proportion equation
281,647.99 : 388,689.78 = 160,828.09 : x - Step 2: Convert to fraction form
281,647.99/388,689.78 = 160,828.09/x - Step 3: Cross multiply
281,647.99x = 388,689.78 × 160,828.09 - Step 4: Simplify right side
281,647.99x = 62,512,234,919.92 - Step 5: Solve for x
x = 62,512,234,919.92/281,647.99 - Step 6: Final answer
x = 221,951.65
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1.5x scale
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.