Finding the Fourth Proportional to 218,618.71, 327,896.89 and 68,855.09
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Solution
The fourth proportional to 218,618.71, 327,896.89 and 68,855.09 is: 103,272.82
Step by Step Solution
- Step 1: Write the proportion equation
218,618.71 : 327,896.89 = 68,855.09 : x - Step 2: Convert to fraction form
218,618.71/327,896.89 = 68,855.09/x - Step 3: Cross multiply
218,618.71x = 327,896.89 × 68,855.09 - Step 4: Simplify right side
218,618.71x = 22,577,369,871.67 - Step 5: Solve for x
x = 22,577,369,871.67/218,618.71 - Step 6: Final answer
x = 103,272.82
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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.