Finding the Fourth Proportional to 311,790.70, 467,029.95 and 259,302.70
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Solution
The fourth proportional to 311,790.70, 467,029.95 and 259,302.70 is: 388,408.40
Step by Step Solution
- Step 1: Write the proportion equation
311,790.70 : 467,029.95 = 259,302.70 : x - Step 2: Convert to fraction form
311,790.70/467,029.95 = 259,302.70/x - Step 3: Cross multiply
311,790.70x = 467,029.95 × 259,302.70 - Step 4: Simplify right side
311,790.70x = 121,102,127,015.87 - Step 5: Solve for x
x = 121,102,127,015.87/311,790.70 - Step 6: Final answer
x = 388,408.40
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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.