Finding the Fourth Proportional to 208,939.04, 313,342.08 and 68,665.28
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Solution
The fourth proportional to 208,939.04, 313,342.08 and 68,665.28 is: 102,976.07
Step by Step Solution
- Step 1: Write the proportion equation
208,939.04 : 313,342.08 = 68,665.28 : x - Step 2: Convert to fraction form
208,939.04/313,342.08 = 68,665.28/x - Step 3: Cross multiply
208,939.04x = 313,342.08 × 68,665.28 - Step 4: Simplify right side
208,939.04x = 21,515,721,658.98 - Step 5: Solve for x
x = 21,515,721,658.98/208,939.04 - Step 6: Final answer
x = 102,976.07
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.