Finding the Fourth Proportional to 209,375.34, 288,911.75 and 141,539.91
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Solution
The fourth proportional to 209,375.34, 288,911.75 and 141,539.91 is: 195,307.35
Step by Step Solution
- Step 1: Write the proportion equation
209,375.34 : 288,911.75 = 141,539.91 : x - Step 2: Convert to fraction form
209,375.34/288,911.75 = 141,539.91/x - Step 3: Cross multiply
209,375.34x = 288,911.75 × 141,539.91 - Step 4: Simplify right side
209,375.34x = 40,892,542,385.24 - Step 5: Solve for x
x = 40,892,542,385.24/209,375.34 - Step 6: Final answer
x = 195,307.35
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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.