Finding the Fourth Proportional to 220,132.76, 303,766.00 and 129,492.14
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Solution
The fourth proportional to 220,132.76, 303,766.00 and 129,492.14 is: 178,689.03
Step by Step Solution
- Step 1: Write the proportion equation
220,132.76 : 303,766.00 = 129,492.14 : x - Step 2: Convert to fraction form
220,132.76/303,766.00 = 129,492.14/x - Step 3: Cross multiply
220,132.76x = 303,766.00 × 129,492.14 - Step 4: Simplify right side
220,132.76x = 39,335,307,556.68 - Step 5: Solve for x
x = 39,335,307,556.68/220,132.76 - Step 6: Final answer
x = 178,689.03
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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.