Finding the Fourth Proportional to 201,120.60, 301,680.90 and 130,261.80
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Solution
The fourth proportional to 201,120.60, 301,680.90 and 130,261.80 is: 195,392.70
Step by Step Solution
- Step 1: Write the proportion equation
201,120.60 : 301,680.90 = 130,261.80 : x - Step 2: Convert to fraction form
201,120.60/301,680.90 = 130,261.80/x - Step 3: Cross multiply
201,120.60x = 301,680.90 × 130,261.80 - Step 4: Simplify right side
201,120.60x = 39,297,497,059.62 - Step 5: Solve for x
x = 39,297,497,059.62/201,120.60 - Step 6: Final answer
x = 195,392.70
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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.