Finding the Fourth Proportional to 290,812.09, 436,345.58 and 141,167.29
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Solution
The fourth proportional to 290,812.09, 436,345.58 and 141,167.29 is: 211,812.80
Step by Step Solution
- Step 1: Write the proportion equation
290,812.09 : 436,345.58 = 141,167.29 : x - Step 2: Convert to fraction form
290,812.09/436,345.58 = 141,167.29/x - Step 3: Cross multiply
290,812.09x = 436,345.58 × 141,167.29 - Step 4: Simplify right side
290,812.09x = 61,597,722,326.24 - Step 5: Solve for x
x = 61,597,722,326.24/290,812.09 - Step 6: Final answer
x = 211,812.80
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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.