Finding the Fourth Proportional to 308,485.80, 462,728.70 and 269,119.80
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Solution
The fourth proportional to 308,485.80, 462,728.70 and 269,119.80 is: 403,679.70
Step by Step Solution
- Step 1: Write the proportion equation
308,485.80 : 462,728.70 = 269,119.80 : x - Step 2: Convert to fraction form
308,485.80/462,728.70 = 269,119.80/x - Step 3: Cross multiply
308,485.80x = 462,728.70 × 269,119.80 - Step 4: Simplify right side
308,485.80x = 124,529,455,198.26 - Step 5: Solve for x
x = 124,529,455,198.26/308,485.80 - Step 6: Final answer
x = 403,679.70
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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.