Finding the Fourth Proportional to 208,291.37, 312,451.61 and 103,082.09
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Solution
The fourth proportional to 208,291.37, 312,451.61 and 103,082.09 is: 154,630.33
Step by Step Solution
- Step 1: Write the proportion equation
208,291.37 : 312,451.61 = 103,082.09 : x - Step 2: Convert to fraction form
208,291.37/312,451.61 = 103,082.09/x - Step 3: Cross multiply
208,291.37x = 312,451.61 × 103,082.09 - Step 4: Simplify right side
208,291.37x = 32,208,162,905.00 - Step 5: Solve for x
x = 32,208,162,905.00/208,291.37 - Step 6: Final answer
x = 154,630.33
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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.