Finding the Fourth Proportional to 309,517.26, 427,209.72 and 188,725.08
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Solution
The fourth proportional to 309,517.26, 427,209.72 and 188,725.08 is: 260,486.89
Step by Step Solution
- Step 1: Write the proportion equation
309,517.26 : 427,209.72 = 188,725.08 : x - Step 2: Convert to fraction form
309,517.26/427,209.72 = 188,725.08/x - Step 3: Cross multiply
309,517.26x = 427,209.72 × 188,725.08 - Step 4: Simplify right side
309,517.26x = 80,625,188,583.78 - Step 5: Solve for x
x = 80,625,188,583.78/309,517.26 - Step 6: Final answer
x = 260,486.89
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.