Finding the Fourth Proportional to 221,112.10, 305,135.70 and 125,624.02
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Solution
The fourth proportional to 221,112.10, 305,135.70 and 125,624.02 is: 173,361.72
Step by Step Solution
- Step 1: Write the proportion equation
221,112.10 : 305,135.70 = 125,624.02 : x - Step 2: Convert to fraction form
221,112.10/305,135.70 = 125,624.02/x - Step 3: Cross multiply
221,112.10x = 305,135.70 × 125,624.02 - Step 4: Simplify right side
221,112.10x = 38,332,373,279.51 - Step 5: Solve for x
x = 38,332,373,279.51/221,112.10 - Step 6: Final answer
x = 173,361.72
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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.