Finding the Fourth Proportional to 219,799.88, 303,325.98 and 129,157.85
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Solution
The fourth proportional to 219,799.88, 303,325.98 and 129,157.85 is: 178,239.09
Step by Step Solution
- Step 1: Write the proportion equation
219,799.88 : 303,325.98 = 129,157.85 : x - Step 2: Convert to fraction form
219,799.88/303,325.98 = 129,157.85/x - Step 3: Cross multiply
219,799.88x = 303,325.98 × 129,157.85 - Step 4: Simplify right side
219,799.88x = 39,176,930,720.22 - Step 5: Solve for x
x = 39,176,930,720.22/219,799.88 - Step 6: Final answer
x = 178,239.09
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.