Finding the Fourth Proportional to 221,343.24, 305,422.84 and 125,839.38
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Solution
The fourth proportional to 221,343.24, 305,422.84 and 125,839.38 is: 173,640.82
Step by Step Solution
- Step 1: Write the proportion equation
221,343.24 : 305,422.84 = 125,839.38 : x - Step 2: Convert to fraction form
221,343.24/305,422.84 = 125,839.38/x - Step 3: Cross multiply
221,343.24x = 305,422.84 × 125,839.38 - Step 4: Simplify right side
221,343.24x = 38,434,220,823.44 - Step 5: Solve for x
x = 38,434,220,823.44/221,343.24 - Step 6: Final answer
x = 173,640.82
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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.