Finding the Fourth Proportional to 208,202.22, 287,319.22 and 112,708.99
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Solution
The fourth proportional to 208,202.22, 287,319.22 and 112,708.99 is: 155,538.49
Step by Step Solution
- Step 1: Write the proportion equation
208,202.22 : 287,319.22 = 112,708.99 : x - Step 2: Convert to fraction form
208,202.22/287,319.22 = 112,708.99/x - Step 3: Cross multiply
208,202.22x = 287,319.22 × 112,708.99 - Step 4: Simplify right side
208,202.22x = 32,383,459,093.79 - Step 5: Solve for x
x = 32,383,459,093.79/208,202.22 - Step 6: Final answer
x = 155,538.49
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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.