Finding the Fourth Proportional to 436,942.68, 655,449.39 and 121,399.62
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Solution
The fourth proportional to 436,942.68, 655,449.39 and 121,399.62 is: 182,109.26
Step by Step Solution
- Step 1: Write the proportion equation
436,942.68 : 655,449.39 = 121,399.62 : x - Step 2: Convert to fraction form
436,942.68/655,449.39 = 121,399.62/x - Step 3: Cross multiply
436,942.68x = 655,449.39 × 121,399.62 - Step 4: Simplify right side
436,942.68x = 79,571,306,875.23 - Step 5: Solve for x
x = 79,571,306,875.23/436,942.68 - Step 6: Final answer
x = 182,109.26
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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.