Finding the Fourth Proportional to 311,951.80, 467,927.70 and 272,585.80
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Solution
The fourth proportional to 311,951.80, 467,927.70 and 272,585.80 is: 408,878.70
Step by Step Solution
- Step 1: Write the proportion equation
311,951.80 : 467,927.70 = 272,585.80 : x - Step 2: Convert to fraction form
311,951.80/467,927.70 = 272,585.80/x - Step 3: Cross multiply
311,951.80x = 467,927.70 × 272,585.80 - Step 4: Simplify right side
311,951.80x = 127,550,446,446.66 - Step 5: Solve for x
x = 127,550,446,446.66/311,951.80 - Step 6: Final answer
x = 408,878.70
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1.5x scale
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.