Finding the Fourth Proportional to 369,201.75, 509,498.64 and 199,435.92
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Solution
The fourth proportional to 369,201.75, 509,498.64 and 199,435.92 is: 275,221.69
Step by Step Solution
- Step 1: Write the proportion equation
369,201.75 : 509,498.64 = 199,435.92 : x - Step 2: Convert to fraction form
369,201.75/509,498.64 = 199,435.92/x - Step 3: Cross multiply
369,201.75x = 509,498.64 × 199,435.92 - Step 4: Simplify right side
369,201.75x = 101,612,330,007.15 - Step 5: Solve for x
x = 101,612,330,007.15/369,201.75 - Step 6: Final answer
x = 275,221.69
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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.