Finding the Fourth Proportional to 213,907.62, 295,063.08 and 137,400.68
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Solution
The fourth proportional to 213,907.62, 295,063.08 and 137,400.68 is: 189,529.80
Step by Step Solution
- Step 1: Write the proportion equation
213,907.62 : 295,063.08 = 137,400.68 : x - Step 2: Convert to fraction form
213,907.62/295,063.08 = 137,400.68/x - Step 3: Cross multiply
213,907.62x = 295,063.08 × 137,400.68 - Step 4: Simplify right side
213,907.62x = 40,541,867,834.89 - Step 5: Solve for x
x = 40,541,867,834.89/213,907.62 - Step 6: Final answer
x = 189,529.80
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1.5x scale
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.