Finding the Fourth Proportional to 194,163.20, 291,244.80 and 69,459.20
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Solution
The fourth proportional to 194,163.20, 291,244.80 and 69,459.20 is: 104,188.80
Step by Step Solution
- Step 1: Write the proportion equation
194,163.20 : 291,244.80 = 69,459.20 : x - Step 2: Convert to fraction form
194,163.20/291,244.80 = 69,459.20/x - Step 3: Cross multiply
194,163.20x = 291,244.80 × 69,459.20 - Step 4: Simplify right side
194,163.20x = 20,229,630,812.16 - Step 5: Solve for x
x = 20,229,630,812.16/194,163.20 - Step 6: Final answer
x = 104,188.80
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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.