Finding the Fourth Proportional to 639,755.36, 959,634.26 and 166,439.96
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Solution
The fourth proportional to 639,755.36, 959,634.26 and 166,439.96 is: 249,660.26
Step by Step Solution
- Step 1: Write the proportion equation
639,755.36 : 959,634.26 = 166,439.96 : x - Step 2: Convert to fraction form
639,755.36/959,634.26 = 166,439.96/x - Step 3: Cross multiply
639,755.36x = 959,634.26 × 166,439.96 - Step 4: Simplify right side
639,755.36x = 159,721,487,849.03 - Step 5: Solve for x
x = 159,721,487,849.03/639,755.36 - Step 6: Final answer
x = 249,660.26
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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.