Finding the Fourth Proportional to 208,285.08, 287,433.68 and 112,791.92
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Solution
The fourth proportional to 208,285.08, 287,433.68 and 112,791.92 is: 155,653.00
Step by Step Solution
- Step 1: Write the proportion equation
208,285.08 : 287,433.68 = 112,791.92 : x - Step 2: Convert to fraction form
208,285.08/287,433.68 = 112,791.92/x - Step 3: Cross multiply
208,285.08x = 287,433.68 × 112,791.92 - Step 4: Simplify right side
208,285.08x = 32,420,196,639.87 - Step 5: Solve for x
x = 32,420,196,639.87/208,285.08 - Step 6: Final answer
x = 155,653.00
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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.