Finding the Fourth Proportional to 263,286.80, 394,930.20 and 245,661.20
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Solution
The fourth proportional to 263,286.80, 394,930.20 and 245,661.20 is: 368,491.80
Step by Step Solution
- Step 1: Write the proportion equation
263,286.80 : 394,930.20 = 245,661.20 : x - Step 2: Convert to fraction form
263,286.80/394,930.20 = 245,661.20/x - Step 3: Cross multiply
263,286.80x = 394,930.20 × 245,661.20 - Step 4: Simplify right side
263,286.80x = 97,019,026,848.24 - Step 5: Solve for x
x = 97,019,026,848.24/263,286.80 - Step 6: Final answer
x = 368,491.80
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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.