Finding the Fourth Proportional to 170,647.62, 255,772.14 and 128,391.96
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Solution
The fourth proportional to 170,647.62, 255,772.14 and 128,391.96 is: 192,438.00
Step by Step Solution
- Step 1: Write the proportion equation
170,647.62 : 255,772.14 = 128,391.96 : x - Step 2: Convert to fraction form
170,647.62/255,772.14 = 128,391.96/x - Step 3: Cross multiply
170,647.62x = 255,772.14 × 128,391.96 - Step 4: Simplify right side
170,647.62x = 32,839,086,367.99 - Step 5: Solve for x
x = 32,839,086,367.99/170,647.62 - Step 6: Final answer
x = 192,438.00
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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.