Finding the Fourth Proportional to 209,491.08, 289,094.87 and 113,997.56
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Solution
The fourth proportional to 209,491.08, 289,094.87 and 113,997.56 is: 157,315.09
Step by Step Solution
- Step 1: Write the proportion equation
209,491.08 : 289,094.87 = 113,997.56 : x - Step 2: Convert to fraction form
209,491.08/289,094.87 = 113,997.56/x - Step 3: Cross multiply
209,491.08x = 289,094.87 × 113,997.56 - Step 4: Simplify right side
209,491.08x = 32,956,107,773.06 - Step 5: Solve for x
x = 32,956,107,773.06/209,491.08 - Step 6: Final answer
x = 157,315.09
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.