Finding the Fourth Proportional to 189,133.80, 283,311.90 and 130,036.20
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Solution
The fourth proportional to 189,133.80, 283,311.90 and 130,036.20 is: 194,786.99
Step by Step Solution
- Step 1: Write the proportion equation
189,133.80 : 283,311.90 = 130,036.20 : x - Step 2: Convert to fraction form
189,133.80/283,311.90 = 130,036.20/x - Step 3: Cross multiply
189,133.80x = 283,311.90 × 130,036.20 - Step 4: Simplify right side
189,133.80x = 36,840,802,890.78 - Step 5: Solve for x
x = 36,840,802,890.78/189,133.80 - Step 6: Final answer
x = 194,786.99
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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.