Finding the Fourth Proportional to 307,424.20, 461,201.10 and 129,839.80
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Solution
The fourth proportional to 307,424.20, 461,201.10 and 129,839.80 is: 194,787.07
Step by Step Solution
- Step 1: Write the proportion equation
307,424.20 : 461,201.10 = 129,839.80 : x - Step 2: Convert to fraction form
307,424.20/461,201.10 = 129,839.80/x - Step 3: Cross multiply
307,424.20x = 461,201.10 × 129,839.80 - Step 4: Simplify right side
307,424.20x = 59,882,258,583.78 - Step 5: Solve for x
x = 59,882,258,583.78/307,424.20 - Step 6: Final answer
x = 194,787.07
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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.