Finding the Fourth Proportional to 290,939.40, 436,625.42 and 216,233.48
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Solution
The fourth proportional to 290,939.40, 436,625.42 and 216,233.48 is: 324,510.99
Step by Step Solution
- Step 1: Write the proportion equation
290,939.40 : 436,625.42 = 216,233.48 : x - Step 2: Convert to fraction form
290,939.40/436,625.42 = 216,233.48/x - Step 3: Cross multiply
290,939.40x = 436,625.42 × 216,233.48 - Step 4: Simplify right side
290,939.40x = 94,413,034,023.06 - Step 5: Solve for x
x = 94,413,034,023.06/290,939.40 - Step 6: Final answer
x = 324,510.99
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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.