Finding the Fourth Proportional to 209,375.09, 288,911.40 and 141,539.66
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Solution
The fourth proportional to 209,375.09, 288,911.40 and 141,539.66 is: 195,307.00
Step by Step Solution
- Step 1: Write the proportion equation
209,375.09 : 288,911.40 = 141,539.66 : x - Step 2: Convert to fraction form
209,375.09/288,911.40 = 141,539.66/x - Step 3: Cross multiply
209,375.09x = 288,911.40 × 141,539.66 - Step 4: Simplify right side
209,375.09x = 40,892,421,326.12 - Step 5: Solve for x
x = 40,892,421,326.12/209,375.09 - Step 6: Final answer
x = 195,307.00
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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.