Finding the Fourth Proportional to 290,218.44, 435,369.24 and 90,556.68
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Solution
The fourth proportional to 290,218.44, 435,369.24 and 90,556.68 is: 135,847.99
Step by Step Solution
- Step 1: Write the proportion equation
290,218.44 : 435,369.24 = 90,556.68 : x - Step 2: Convert to fraction form
290,218.44/435,369.24 = 90,556.68/x - Step 3: Cross multiply
290,218.44x = 435,369.24 × 90,556.68 - Step 4: Simplify right side
290,218.44x = 39,425,592,948.52 - Step 5: Solve for x
x = 39,425,592,948.52/290,218.44 - Step 6: Final answer
x = 135,847.99
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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.