Finding the Fourth Proportional to 192,368.12, 288,478.26 and 80,101.31
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Solution
The fourth proportional to 192,368.12, 288,478.26 and 80,101.31 is: 120,121.18
Step by Step Solution
- Step 1: Write the proportion equation
192,368.12 : 288,478.26 = 80,101.31 : x - Step 2: Convert to fraction form
192,368.12/288,478.26 = 80,101.31/x - Step 3: Cross multiply
192,368.12x = 288,478.26 × 80,101.31 - Step 4: Simplify right side
192,368.12x = 23,107,485,090.13 - Step 5: Solve for x
x = 23,107,485,090.13/192,368.12 - Step 6: Final answer
x = 120,121.18
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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.