Finding the Fourth Proportional to 285,310.80, 427,771.80 and 135,622.80
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Solution
The fourth proportional to 285,310.80, 427,771.80 and 135,622.80 is: 203,341.79
Step by Step Solution
- Step 1: Write the proportion equation
285,310.80 : 427,771.80 = 135,622.80 : x - Step 2: Convert to fraction form
285,310.80/427,771.80 = 135,622.80/x - Step 3: Cross multiply
285,310.80x = 427,771.80 × 135,622.80 - Step 4: Simplify right side
285,310.80x = 58,015,609,277.04 - Step 5: Solve for x
x = 58,015,609,277.04/285,310.80 - Step 6: Final answer
x = 203,341.79
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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.