Finding the Fourth Proportional to 208,696.08, 288,046.08 and 128,165.88
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Solution
The fourth proportional to 208,696.08, 288,046.08 and 128,165.88 is: 176,896.85
Step by Step Solution
- Step 1: Write the proportion equation
208,696.08 : 288,046.08 = 128,165.88 : x - Step 2: Convert to fraction form
208,696.08/288,046.08 = 128,165.88/x - Step 3: Cross multiply
208,696.08x = 288,046.08 × 128,165.88 - Step 4: Simplify right side
208,696.08x = 36,917,679,323.75 - Step 5: Solve for x
x = 36,917,679,323.75/208,696.08 - Step 6: Final answer
x = 176,896.85
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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.