Finding the Fourth Proportional to 208,841.26, 288,201.21 and 113,347.97
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Solution
The fourth proportional to 208,841.26, 288,201.21 and 113,347.97 is: 156,420.34
Step by Step Solution
- Step 1: Write the proportion equation
208,841.26 : 288,201.21 = 113,347.97 : x - Step 2: Convert to fraction form
208,841.26/288,201.21 = 113,347.97/x - Step 3: Cross multiply
208,841.26x = 288,201.21 × 113,347.97 - Step 4: Simplify right side
208,841.26x = 32,667,020,664.04 - Step 5: Solve for x
x = 32,667,020,664.04/208,841.26 - Step 6: Final answer
x = 156,420.34
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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.