Finding the Fourth Proportional to 355,715.91, 490,901.58 and 202,778.19
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Solution
The fourth proportional to 355,715.91, 490,901.58 and 202,778.19 is: 279,841.67
Step by Step Solution
- Step 1: Write the proportion equation
355,715.91 : 490,901.58 = 202,778.19 : x - Step 2: Convert to fraction form
355,715.91/490,901.58 = 202,778.19/x - Step 3: Cross multiply
355,715.91x = 490,901.58 × 202,778.19 - Step 4: Simplify right side
355,715.91x = 99,544,133,860.54 - Step 5: Solve for x
x = 99,544,133,860.54/355,715.91 - Step 6: Final answer
x = 279,841.67
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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.