Finding the Fourth Proportional to 355,338.27, 490,366.86 and 202,390.70
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Solution
The fourth proportional to 355,338.27, 490,366.86 and 202,390.70 is: 279,299.20
Step by Step Solution
- Step 1: Write the proportion equation
355,338.27 : 490,366.86 = 202,390.70 : x - Step 2: Convert to fraction form
355,338.27/490,366.86 = 202,390.70/x - Step 3: Cross multiply
355,338.27x = 490,366.86 × 202,390.70 - Step 4: Simplify right side
355,338.27x = 99,245,692,198.21 - Step 5: Solve for x
x = 99,245,692,198.21/355,338.27 - Step 6: Final answer
x = 279,299.20
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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.