Finding the Fourth Proportional to 221,315.88, 305,395.40 and 125,803.92
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Solution
The fourth proportional to 221,315.88, 305,395.40 and 125,803.92 is: 173,597.75
Step by Step Solution
- Step 1: Write the proportion equation
221,315.88 : 305,395.40 = 125,803.92 : x - Step 2: Convert to fraction form
221,315.88/305,395.40 = 125,803.92/x - Step 3: Cross multiply
221,315.88x = 305,395.40 × 125,803.92 - Step 4: Simplify right side
221,315.88x = 38,419,938,469.97 - Step 5: Solve for x
x = 38,419,938,469.97/221,315.88 - Step 6: Final answer
x = 173,597.75
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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.