Finding the Fourth Proportional to 208,122.01, 287,209.19 and 112,628.68
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Solution
The fourth proportional to 208,122.01, 287,209.19 and 112,628.68 is: 155,428.02
Step by Step Solution
- Step 1: Write the proportion equation
208,122.01 : 287,209.19 = 112,628.68 : x - Step 2: Convert to fraction form
208,122.01/287,209.19 = 112,628.68/x - Step 3: Cross multiply
208,122.01x = 287,209.19 × 112,628.68 - Step 4: Simplify right side
208,122.01x = 32,347,991,517.12 - Step 5: Solve for x
x = 32,347,991,517.12/208,122.01 - Step 6: Final answer
x = 155,428.02
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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.