Finding the Fourth Proportional to 290,306.20, 434,876.10 and 201,659.80
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Solution
The fourth proportional to 290,306.20, 434,876.10 and 201,659.80 is: 302,084.58
Step by Step Solution
- Step 1: Write the proportion equation
290,306.20 : 434,876.10 = 201,659.80 : x - Step 2: Convert to fraction form
290,306.20/434,876.10 = 201,659.80/x - Step 3: Cross multiply
290,306.20x = 434,876.10 × 201,659.80 - Step 4: Simplify right side
290,306.20x = 87,697,027,350.78 - Step 5: Solve for x
x = 87,697,027,350.78/290,306.20 - Step 6: Final answer
x = 302,084.58
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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.