Finding the Fourth Proportional to 312,203.70, 467,649.45 and 259,715.70
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Solution
The fourth proportional to 312,203.70, 467,649.45 and 259,715.70 is: 389,027.75
Step by Step Solution
- Step 1: Write the proportion equation
312,203.70 : 467,649.45 = 259,715.70 : x - Step 2: Convert to fraction form
312,203.70/467,649.45 = 259,715.70/x - Step 3: Cross multiply
312,203.70x = 467,649.45 × 259,715.70 - Step 4: Simplify right side
312,203.70x = 121,455,904,261.37 - Step 5: Solve for x
x = 121,455,904,261.37/312,203.70 - Step 6: Final answer
x = 389,027.75
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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.