Finding the Fourth Proportional to 290,310.20, 434,882.10 and 201,663.80
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Solution
The fourth proportional to 290,310.20, 434,882.10 and 201,663.80 is: 302,090.58
Step by Step Solution
- Step 1: Write the proportion equation
290,310.20 : 434,882.10 = 201,663.80 : x - Step 2: Convert to fraction form
290,310.20/434,882.10 = 201,663.80/x - Step 3: Cross multiply
290,310.20x = 434,882.10 × 201,663.80 - Step 4: Simplify right side
290,310.20x = 87,699,976,837.98 - Step 5: Solve for x
x = 87,699,976,837.98/290,310.20 - Step 6: Final answer
x = 302,090.58
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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.