Finding the Fourth Proportional to 218,291.81, 327,492.21 and 76,139.12
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Solution
The fourth proportional to 218,291.81, 327,492.21 and 76,139.12 is: 114,227.69
Step by Step Solution
- Step 1: Write the proportion equation
218,291.81 : 327,492.21 = 76,139.12 : x - Step 2: Convert to fraction form
218,291.81/327,492.21 = 76,139.12/x - Step 3: Cross multiply
218,291.81x = 327,492.21 × 76,139.12 - Step 4: Simplify right side
218,291.81x = 24,934,969,138.08 - Step 5: Solve for x
x = 24,934,969,138.08/218,291.81 - Step 6: Final answer
x = 114,227.69
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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.