Finding the Fourth Proportional to 218,544.99, 327,875.82 and 78,317.79
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Solution
The fourth proportional to 218,544.99, 327,875.82 and 78,317.79 is: 117,497.59
Step by Step Solution
- Step 1: Write the proportion equation
218,544.99 : 327,875.82 = 78,317.79 : x - Step 2: Convert to fraction form
218,544.99/327,875.82 = 78,317.79/x - Step 3: Cross multiply
218,544.99x = 327,875.82 × 78,317.79 - Step 4: Simplify right side
218,544.99x = 25,678,509,616.84 - Step 5: Solve for x
x = 25,678,509,616.84/218,544.99 - Step 6: Final answer
x = 117,497.59
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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.