Finding the Fourth Proportional to 208,518.26, 312,729.42 and 124,302.20
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Solution
The fourth proportional to 208,518.26, 312,729.42 and 124,302.20 is: 186,424.70
Step by Step Solution
- Step 1: Write the proportion equation
208,518.26 : 312,729.42 = 124,302.20 : x - Step 2: Convert to fraction form
208,518.26/312,729.42 = 124,302.20/x - Step 3: Cross multiply
208,518.26x = 312,729.42 × 124,302.20 - Step 4: Simplify right side
208,518.26x = 38,872,954,910.72 - Step 5: Solve for x
x = 38,872,954,910.72/208,518.26 - Step 6: Final answer
x = 186,424.70
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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.