Finding the Fourth Proportional to 355,341.70, 490,370.74 and 202,379.88
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Solution
The fourth proportional to 355,341.70, 490,370.74 and 202,379.88 is: 279,283.78
Step by Step Solution
- Step 1: Write the proportion equation
355,341.70 : 490,370.74 = 202,379.88 : x - Step 2: Convert to fraction form
355,341.70/490,370.74 = 202,379.88/x - Step 3: Cross multiply
355,341.70x = 490,370.74 × 202,379.88 - Step 4: Simplify right side
355,341.70x = 99,241,171,516.71 - Step 5: Solve for x
x = 99,241,171,516.71/355,341.70 - Step 6: Final answer
x = 279,283.78
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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.