Finding the Fourth Proportional to 221,037.74, 331,571.18 and 80,894.78
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Solution
The fourth proportional to 221,037.74, 331,571.18 and 80,894.78 is: 121,347.50
Step by Step Solution
- Step 1: Write the proportion equation
221,037.74 : 331,571.18 = 80,894.78 : x - Step 2: Convert to fraction form
221,037.74/331,571.18 = 80,894.78/x - Step 3: Cross multiply
221,037.74x = 331,571.18 × 80,894.78 - Step 4: Simplify right side
221,037.74x = 26,822,377,660.44 - Step 5: Solve for x
x = 26,822,377,660.44/221,037.74 - Step 6: Final answer
x = 121,347.50
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.