Finding the Fourth Proportional to 259,048.75, 388,628.70 and 146,782.75
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Solution
The fourth proportional to 259,048.75, 388,628.70 and 146,782.75 is: 220,205.62
Step by Step Solution
- Step 1: Write the proportion equation
259,048.75 : 388,628.70 = 146,782.75 : x - Step 2: Convert to fraction form
259,048.75/388,628.70 = 146,782.75/x - Step 3: Cross multiply
259,048.75x = 388,628.70 × 146,782.75 - Step 4: Simplify right side
259,048.75x = 57,043,989,314.93 - Step 5: Solve for x
x = 57,043,989,314.93/259,048.75 - Step 6: Final answer
x = 220,205.62
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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.