Finding the Fourth Proportional to 189,274.80, 283,912.20 and 155,449.20
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Solution
The fourth proportional to 189,274.80, 283,912.20 and 155,449.20 is: 233,173.80
Step by Step Solution
- Step 1: Write the proportion equation
189,274.80 : 283,912.20 = 155,449.20 : x - Step 2: Convert to fraction form
189,274.80/283,912.20 = 155,449.20/x - Step 3: Cross multiply
189,274.80x = 283,912.20 × 155,449.20 - Step 4: Simplify right side
189,274.80x = 44,133,924,360.24 - Step 5: Solve for x
x = 44,133,924,360.24/189,274.80 - Step 6: Final answer
x = 233,173.80
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1.5x scale
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.