Finding the Fourth Proportional to 290,106.68, 435,161.94 and 79,766.84
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Solution
The fourth proportional to 290,106.68, 435,161.94 and 79,766.84 is: 119,650.79
Step by Step Solution
- Step 1: Write the proportion equation
290,106.68 : 435,161.94 = 79,766.84 : x - Step 2: Convert to fraction form
290,106.68/435,161.94 = 79,766.84/x - Step 3: Cross multiply
290,106.68x = 435,161.94 × 79,766.84 - Step 4: Simplify right side
290,106.68x = 34,711,492,842.07 - Step 5: Solve for x
x = 34,711,492,842.07/290,106.68 - Step 6: Final answer
x = 119,650.79
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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.