Finding the Fourth Proportional to 451,729.20, 677,593.80 and 119,305.20
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Solution
The fourth proportional to 451,729.20, 677,593.80 and 119,305.20 is: 178,957.80
Step by Step Solution
- Step 1: Write the proportion equation
451,729.20 : 677,593.80 = 119,305.20 : x - Step 2: Convert to fraction form
451,729.20/677,593.80 = 119,305.20/x - Step 3: Cross multiply
451,729.20x = 677,593.80 × 119,305.20 - Step 4: Simplify right side
451,729.20x = 80,840,463,827.76 - Step 5: Solve for x
x = 80,840,463,827.76/451,729.20 - Step 6: Final answer
x = 178,957.80
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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.