Finding the Fourth Proportional to 220,188.11, 303,860.18 and 129,547.49
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Solution
The fourth proportional to 220,188.11, 303,860.18 and 129,547.49 is: 178,775.88
Step by Step Solution
- Step 1: Write the proportion equation
220,188.11 : 303,860.18 = 129,547.49 : x - Step 2: Convert to fraction form
220,188.11/303,860.18 = 129,547.49/x - Step 3: Cross multiply
220,188.11x = 303,860.18 × 129,547.49 - Step 4: Simplify right side
220,188.11x = 39,364,323,629.95 - Step 5: Solve for x
x = 39,364,323,629.95/220,188.11 - Step 6: Final answer
x = 178,775.88
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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.