Finding the Fourth Proportional to 290,469.20, 435,703.80 and 201,534.80
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Solution
The fourth proportional to 290,469.20, 435,703.80 and 201,534.80 is: 302,302.20
Step by Step Solution
- Step 1: Write the proportion equation
290,469.20 : 435,703.80 = 201,534.80 : x - Step 2: Convert to fraction form
290,469.20/435,703.80 = 201,534.80/x - Step 3: Cross multiply
290,469.20x = 435,703.80 × 201,534.80 - Step 4: Simplify right side
290,469.20x = 87,809,478,192.24 - Step 5: Solve for x
x = 87,809,478,192.24/290,469.20 - Step 6: Final answer
x = 302,302.20
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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.