Finding the Fourth Proportional to 218,944.99, 328,564.88 and 76,791.59
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Solution
The fourth proportional to 218,944.99, 328,564.88 and 76,791.59 is: 115,239.08
Step by Step Solution
- Step 1: Write the proportion equation
218,944.99 : 328,564.88 = 76,791.59 : x - Step 2: Convert to fraction form
218,944.99/328,564.88 = 76,791.59/x - Step 3: Cross multiply
218,944.99x = 328,564.88 × 76,791.59 - Step 4: Simplify right side
218,944.99x = 25,231,019,553.36 - Step 5: Solve for x
x = 25,231,019,553.36/218,944.99 - Step 6: Final answer
x = 115,239.08
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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.