Finding the Fourth Proportional to 209,340.36, 288,897.36 and 119,933.64
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Solution
The fourth proportional to 209,340.36, 288,897.36 and 119,933.64 is: 165,512.81
Step by Step Solution
- Step 1: Write the proportion equation
209,340.36 : 288,897.36 = 119,933.64 : x - Step 2: Convert to fraction form
209,340.36/288,897.36 = 119,933.64/x - Step 3: Cross multiply
209,340.36x = 288,897.36 × 119,933.64 - Step 4: Simplify right side
209,340.36x = 34,648,511,971.19 - Step 5: Solve for x
x = 34,648,511,971.19/209,340.36 - Step 6: Final answer
x = 165,512.81
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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.