Finding the Fourth Proportional to 208,862.40, 288,229.14 and 113,368.26
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Solution
The fourth proportional to 208,862.40, 288,229.14 and 113,368.26 is: 156,447.67
Step by Step Solution
- Step 1: Write the proportion equation
208,862.40 : 288,229.14 = 113,368.26 : x - Step 2: Convert to fraction form
208,862.40/288,229.14 = 113,368.26/x - Step 3: Cross multiply
208,862.40x = 288,229.14 × 113,368.26 - Step 4: Simplify right side
208,862.40x = 32,676,036,083.10 - Step 5: Solve for x
x = 32,676,036,083.10/208,862.40 - Step 6: Final answer
x = 156,447.67
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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.