Finding the Fourth Proportional to 208,359.24, 287,537.12 and 112,865.91
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Solution
The fourth proportional to 208,359.24, 287,537.12 and 112,865.91 is: 155,755.69
Step by Step Solution
- Step 1: Write the proportion equation
208,359.24 : 287,537.12 = 112,865.91 : x - Step 2: Convert to fraction form
208,359.24/287,537.12 = 112,865.91/x - Step 3: Cross multiply
208,359.24x = 287,537.12 × 112,865.91 - Step 4: Simplify right side
208,359.24x = 32,453,138,143.25 - Step 5: Solve for x
x = 32,453,138,143.25/208,359.24 - Step 6: Final answer
x = 155,755.69
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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.