Finding the Fourth Proportional to 263,846.36, 395,831.64 and 86,352.68
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Solution
The fourth proportional to 263,846.36, 395,831.64 and 86,352.68 is: 129,549.34
Step by Step Solution
- Step 1: Write the proportion equation
263,846.36 : 395,831.64 = 86,352.68 : x - Step 2: Convert to fraction form
263,846.36/395,831.64 = 86,352.68/x - Step 3: Cross multiply
263,846.36x = 395,831.64 × 86,352.68 - Step 4: Simplify right side
263,846.36x = 34,181,122,942.80 - Step 5: Solve for x
x = 34,181,122,942.80/263,846.36 - Step 6: Final answer
x = 129,549.34
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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.