Finding the Fourth Proportional to 208,313.34, 312,486.21 and 68,086.14
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Solution
The fourth proportional to 208,313.34, 312,486.21 and 68,086.14 is: 102,134.50
Step by Step Solution
- Step 1: Write the proportion equation
208,313.34 : 312,486.21 = 68,086.14 : x - Step 2: Convert to fraction form
208,313.34/312,486.21 = 68,086.14/x - Step 3: Cross multiply
208,313.34x = 312,486.21 × 68,086.14 - Step 4: Simplify right side
208,313.34x = 21,275,979,842.13 - Step 5: Solve for x
x = 21,275,979,842.13/208,313.34 - Step 6: Final answer
x = 102,134.50
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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.