Finding the Fourth Proportional to 201,630.60, 302,445.90 and 130,771.80
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Solution
The fourth proportional to 201,630.60, 302,445.90 and 130,771.80 is: 196,157.70
Step by Step Solution
- Step 1: Write the proportion equation
201,630.60 : 302,445.90 = 130,771.80 : x - Step 2: Convert to fraction form
201,630.60/302,445.90 = 130,771.80/x - Step 3: Cross multiply
201,630.60x = 302,445.90 × 130,771.80 - Step 4: Simplify right side
201,630.60x = 39,551,394,745.62 - Step 5: Solve for x
x = 39,551,394,745.62/201,630.60 - Step 6: Final answer
x = 196,157.70
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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.