Finding the Fourth Proportional to 311,852.20, 467,122.20 and 259,364.20
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Solution
The fourth proportional to 311,852.20, 467,122.20 and 259,364.20 is: 388,500.63
Step by Step Solution
- Step 1: Write the proportion equation
311,852.20 : 467,122.20 = 259,364.20 : x - Step 2: Convert to fraction form
311,852.20/467,122.20 = 259,364.20/x - Step 3: Cross multiply
311,852.20x = 467,122.20 × 259,364.20 - Step 4: Simplify right side
311,852.20x = 121,154,775,705.24 - Step 5: Solve for x
x = 121,154,775,705.24/311,852.20 - Step 6: Final answer
x = 388,500.63
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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.