Finding the Fourth Proportional to 290,440,230.20, 435,660,345.30 and 106,207,350.20
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Solution
The fourth proportional to 290,440,230.20, 435,660,345.30 and 106,207,350.20 is: 159,311,025.30
Step by Step Solution
- Step 1: Write the proportion equation
290,440,230.20 : 435,660,345.30 = 106,207,350.20 : x - Step 2: Convert to fraction form
290,440,230.20/435,660,345.30 = 106,207,350.20/x - Step 3: Cross multiply
290,440,230.20x = 435,660,345.30 × 106,207,350.20 - Step 4: Simplify right side
290,440,230.20x = 46,270,330,861,530,024 - Step 5: Solve for x
x = 46,270,330,861,530,024/290,440,230.20 - Step 6: Final answer
x = 159,311,025.30
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.