Finding the Fourth Proportional to 274,610.76, 378,639.99 and 220,119.36
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Solution
The fourth proportional to 274,610.76, 378,639.99 and 220,119.36 is: 303,505.92
Step by Step Solution
- Step 1: Write the proportion equation
274,610.76 : 378,639.99 = 220,119.36 : x - Step 2: Convert to fraction form
274,610.76/378,639.99 = 220,119.36/x - Step 3: Cross multiply
274,610.76x = 378,639.99 × 220,119.36 - Step 4: Simplify right side
274,610.76x = 83,345,992,269.21 - Step 5: Solve for x
x = 83,345,992,269.21/274,610.76 - Step 6: Final answer
x = 303,505.92
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.