Finding the Fourth Proportional to 220,163.36, 330,020.88 and 86,860.64
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Solution
The fourth proportional to 220,163.36, 330,020.88 and 86,860.64 is: 130,202.52
Step by Step Solution
- Step 1: Write the proportion equation
220,163.36 : 330,020.88 = 86,860.64 : x - Step 2: Convert to fraction form
220,163.36/330,020.88 = 86,860.64/x - Step 3: Cross multiply
220,163.36x = 330,020.88 × 86,860.64 - Step 4: Simplify right side
220,163.36x = 28,665,824,850.16 - Step 5: Solve for x
x = 28,665,824,850.16/220,163.36 - Step 6: Final answer
x = 130,202.52
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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.