Finding the Fourth Proportional to 290,305.20, 434,874.60 and 201,658.80
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Solution
The fourth proportional to 290,305.20, 434,874.60 and 201,658.80 is: 302,083.08
Step by Step Solution
- Step 1: Write the proportion equation
290,305.20 : 434,874.60 = 201,658.80 : x - Step 2: Convert to fraction form
290,305.20/434,874.60 = 201,658.80/x - Step 3: Cross multiply
290,305.20x = 434,874.60 × 201,658.80 - Step 4: Simplify right side
290,305.20x = 87,696,289,986.48 - Step 5: Solve for x
x = 87,696,289,986.48/290,305.20 - Step 6: Final answer
x = 302,083.08
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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.