Finding the Fourth Proportional to 311,108.40, 465,496.20 and 283,114.80
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Solution
The fourth proportional to 311,108.40, 465,496.20 and 283,114.80 is: 423,610.75
Step by Step Solution
- Step 1: Write the proportion equation
311,108.40 : 465,496.20 = 283,114.80 : x - Step 2: Convert to fraction form
311,108.40/465,496.20 = 283,114.80/x - Step 3: Cross multiply
311,108.40x = 465,496.20 × 283,114.80 - Step 4: Simplify right side
311,108.40x = 131,788,863,563.76 - Step 5: Solve for x
x = 131,788,863,563.76/311,108.40 - Step 6: Final answer
x = 423,610.75
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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.