Finding the Fourth Proportional to 279,826.41, 386,222.78 and 177,831.99
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Solution
The fourth proportional to 279,826.41, 386,222.78 and 177,831.99 is: 245,447.76
Step by Step Solution
- Step 1: Write the proportion equation
279,826.41 : 386,222.78 = 177,831.99 : x - Step 2: Convert to fraction form
279,826.41/386,222.78 = 177,831.99/x - Step 3: Cross multiply
279,826.41x = 386,222.78 × 177,831.99 - Step 4: Simplify right side
279,826.41x = 68,682,765,995.31 - Step 5: Solve for x
x = 68,682,765,995.31/279,826.41 - Step 6: Final answer
x = 245,447.76
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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.