Finding the Fourth Proportional to 421,371.97, 581,350.87 and 239,955.26
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Solution
The fourth proportional to 421,371.97, 581,350.87 and 239,955.26 is: 331,057.14
Step by Step Solution
- Step 1: Write the proportion equation
421,371.97 : 581,350.87 = 239,955.26 : x - Step 2: Convert to fraction form
421,371.97/581,350.87 = 239,955.26/x - Step 3: Cross multiply
421,371.97x = 581,350.87 × 239,955.26 - Step 4: Simplify right side
421,371.97x = 139,498,198,735.33 - Step 5: Solve for x
x = 139,498,198,735.33/421,371.97 - Step 6: Final answer
x = 331,057.14
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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.