Finding the Fourth Proportional to 208,034.13, 287,086.11 and 112,539.99
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Solution
The fourth proportional to 208,034.13, 287,086.11 and 112,539.99 is: 155,304.65
Step by Step Solution
- Step 1: Write the proportion equation
208,034.13 : 287,086.11 = 112,539.99 : x - Step 2: Convert to fraction form
208,034.13/287,086.11 = 112,539.99/x - Step 3: Cross multiply
208,034.13x = 287,086.11 × 112,539.99 - Step 4: Simplify right side
208,034.13x = 32,308,667,948.54 - Step 5: Solve for x
x = 32,308,667,948.54/208,034.13 - Step 6: Final answer
x = 155,304.65
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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.