Finding the Fourth Proportional to 311,109.57, 466,560.59 and 121,520.79
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Solution
The fourth proportional to 311,109.57, 466,560.59 and 121,520.79 is: 182,240.65
Step by Step Solution
- Step 1: Write the proportion equation
311,109.57 : 466,560.59 = 121,520.79 : x - Step 2: Convert to fraction form
311,109.57/466,560.59 = 121,520.79/x - Step 3: Cross multiply
311,109.57x = 466,560.59 × 121,520.79 - Step 4: Simplify right side
311,109.57x = 56,696,810,872.06 - Step 5: Solve for x
x = 56,696,810,872.06/311,109.57 - Step 6: Final answer
x = 182,240.65
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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.