Finding the Fourth Proportional to 178,212.80, 267,319.20 and 73,107.20
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Solution
The fourth proportional to 178,212.80, 267,319.20 and 73,107.20 is: 109,660.80
Step by Step Solution
- Step 1: Write the proportion equation
178,212.80 : 267,319.20 = 73,107.20 : x - Step 2: Convert to fraction form
178,212.80/267,319.20 = 73,107.20/x - Step 3: Cross multiply
178,212.80x = 267,319.20 × 73,107.20 - Step 4: Simplify right side
178,212.80x = 19,542,958,218.24 - Step 5: Solve for x
x = 19,542,958,218.24/178,212.80 - Step 6: Final answer
x = 109,660.80
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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.