Finding the Fourth Proportional to 212,896.09, 293,811.11 and 123,472.09
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Solution
The fourth proportional to 212,896.09, 293,811.11 and 123,472.09 is: 170,399.90
Step by Step Solution
- Step 1: Write the proportion equation
212,896.09 : 293,811.11 = 123,472.09 : x - Step 2: Convert to fraction form
212,896.09/293,811.11 = 123,472.09/x - Step 3: Cross multiply
212,896.09x = 293,811.11 × 123,472.09 - Step 4: Simplify right side
212,896.09x = 36,277,471,816.92 - Step 5: Solve for x
x = 36,277,471,816.92/212,896.09 - Step 6: Final answer
x = 170,399.90
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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.