Finding the Fourth Proportional to 170,515.21, 255,545.58 and 80,581.80
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Solution
The fourth proportional to 170,515.21, 255,545.58 and 80,581.80 is: 120,765.31
Step by Step Solution
- Step 1: Write the proportion equation
170,515.21 : 255,545.58 = 80,581.80 : x - Step 2: Convert to fraction form
170,515.21/255,545.58 = 80,581.80/x - Step 3: Cross multiply
170,515.21x = 255,545.58 × 80,581.80 - Step 4: Simplify right side
170,515.21x = 20,592,322,068.18 - Step 5: Solve for x
x = 20,592,322,068.18/170,515.21 - Step 6: Final answer
x = 120,765.31
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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.