Finding the Fourth Proportional to 307,425.20, 461,202.60 and 129,840.80
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Solution
The fourth proportional to 307,425.20, 461,202.60 and 129,840.80 is: 194,788.57
Step by Step Solution
- Step 1: Write the proportion equation
307,425.20 : 461,202.60 = 129,840.80 : x - Step 2: Convert to fraction form
307,425.20/461,202.60 = 129,840.80/x - Step 3: Cross multiply
307,425.20x = 461,202.60 × 129,840.80 - Step 4: Simplify right side
307,425.20x = 59,882,914,546.08 - Step 5: Solve for x
x = 59,882,914,546.08/307,425.20 - Step 6: Final answer
x = 194,788.57
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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.