Finding the Fourth Proportional to 378,516.02, 522,352.58 and 206,434.26
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Solution
The fourth proportional to 378,516.02, 522,352.58 and 206,434.26 is: 284,879.54
Step by Step Solution
- Step 1: Write the proportion equation
378,516.02 : 522,352.58 = 206,434.26 : x - Step 2: Convert to fraction form
378,516.02/522,352.58 = 206,434.26/x - Step 3: Cross multiply
378,516.02x = 522,352.58 × 206,434.26 - Step 4: Simplify right side
378,516.02x = 107,831,467,279.22 - Step 5: Solve for x
x = 107,831,467,279.22/378,516.02 - Step 6: Final answer
x = 284,879.54
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1.5x scale
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.