Finding the Fourth Proportional to 208,201.22, 287,317.84 and 112,707.99
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Solution
The fourth proportional to 208,201.22, 287,317.84 and 112,707.99 is: 155,537.11
Step by Step Solution
- Step 1: Write the proportion equation
208,201.22 : 287,317.84 = 112,707.99 : x - Step 2: Convert to fraction form
208,201.22/287,317.84 = 112,707.99/x - Step 3: Cross multiply
208,201.22x = 287,317.84 × 112,707.99 - Step 4: Simplify right side
208,201.22x = 32,383,015,955.77 - Step 5: Solve for x
x = 32,383,015,955.77/208,201.22 - Step 6: Final answer
x = 155,537.11
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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.