Finding the Fourth Proportional to 259,730.80, 389,596.20 and 206,586.70
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Solution
The fourth proportional to 259,730.80, 389,596.20 and 206,586.70 is: 309,880.05
Step by Step Solution
- Step 1: Write the proportion equation
259,730.80 : 389,596.20 = 206,586.70 : x - Step 2: Convert to fraction form
259,730.80/389,596.20 = 206,586.70/x - Step 3: Cross multiply
259,730.80x = 389,596.20 × 206,586.70 - Step 4: Simplify right side
259,730.80x = 80,485,393,290.54 - Step 5: Solve for x
x = 80,485,393,290.54/259,730.80 - Step 6: Final answer
x = 309,880.05
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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.