Finding the Fourth Proportional to 213,458.08, 320,187.11 and 80,368.19
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Solution
The fourth proportional to 213,458.08, 320,187.11 and 80,368.19 is: 120,552.28
Step by Step Solution
- Step 1: Write the proportion equation
213,458.08 : 320,187.11 = 80,368.19 : x - Step 2: Convert to fraction form
213,458.08/320,187.11 = 80,368.19/x - Step 3: Cross multiply
213,458.08x = 320,187.11 × 80,368.19 - Step 4: Simplify right side
213,458.08x = 25,732,858,492.03 - Step 5: Solve for x
x = 25,732,858,492.03/213,458.08 - Step 6: Final answer
x = 120,552.28
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1.5x scale
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.