Finding the Fourth Proportional to 207,163.80, 310,761.36 and 57,402.36
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Solution
The fourth proportional to 207,163.80, 310,761.36 and 57,402.36 is: 86,107.88
Step by Step Solution
- Step 1: Write the proportion equation
207,163.80 : 310,761.36 = 57,402.36 : x - Step 2: Convert to fraction form
207,163.80/310,761.36 = 57,402.36/x - Step 3: Cross multiply
207,163.80x = 310,761.36 × 57,402.36 - Step 4: Simplify right side
207,163.80x = 17,838,435,460.81 - Step 5: Solve for x
x = 17,838,435,460.81/207,163.80 - Step 6: Final answer
x = 86,107.88
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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.