Finding the Fourth Proportional to 189,005.31, 283,508.44 and 129,661.07
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Solution
The fourth proportional to 189,005.31, 283,508.44 and 129,661.07 is: 194,491.92
Step by Step Solution
- Step 1: Write the proportion equation
189,005.31 : 283,508.44 = 129,661.07 : x - Step 2: Convert to fraction form
189,005.31/283,508.44 = 129,661.07/x - Step 3: Cross multiply
189,005.31x = 283,508.44 × 129,661.07 - Step 4: Simplify right side
189,005.31x = 36,760,005,942.74 - Step 5: Solve for x
x = 36,760,005,942.74/189,005.31 - Step 6: Final answer
x = 194,491.92
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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.