Finding the Fourth Proportional to 221,370.21, 305,490.94 and 125,882.75
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Solution
The fourth proportional to 221,370.21, 305,490.94 and 125,882.75 is: 173,718.23
Step by Step Solution
- Step 1: Write the proportion equation
221,370.21 : 305,490.94 = 125,882.75 : x - Step 2: Convert to fraction form
221,370.21/305,490.94 = 125,882.75/x - Step 3: Cross multiply
221,370.21x = 305,490.94 × 125,882.75 - Step 4: Simplify right side
221,370.21x = 38,456,040,076.31 - Step 5: Solve for x
x = 38,456,040,076.31/221,370.21 - Step 6: Final answer
x = 173,718.23
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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.