Finding the Fourth Proportional to 436,213.31, 654,318.97 and 136,716.71
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Solution
The fourth proportional to 436,213.31, 654,318.97 and 136,716.71 is: 205,074.75
Step by Step Solution
- Step 1: Write the proportion equation
436,213.31 : 654,318.97 = 136,716.71 : x - Step 2: Convert to fraction form
436,213.31/654,318.97 = 136,716.71/x - Step 3: Cross multiply
436,213.31x = 654,318.97 × 136,716.71 - Step 4: Simplify right side
436,213.31x = 89,456,333,255.60 - Step 5: Solve for x
x = 89,456,333,255.60/436,213.31 - Step 6: Final answer
x = 205,074.75
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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.