Finding the Fourth Proportional to 225,433.68, 311,107.86 and 124,831.68
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Solution
The fourth proportional to 225,433.68, 311,107.86 and 124,831.68 is: 172,272.91
Step by Step Solution
- Step 1: Write the proportion equation
225,433.68 : 311,107.86 = 124,831.68 : x - Step 2: Convert to fraction form
225,433.68/311,107.86 = 124,831.68/x - Step 3: Cross multiply
225,433.68x = 311,107.86 × 124,831.68 - Step 4: Simplify right side
225,433.68x = 38,836,116,825.00 - Step 5: Solve for x
x = 38,836,116,825.00/225,433.68 - Step 6: Final answer
x = 172,272.91
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.