Finding the Fourth Proportional to 226,113.48, 311,947.84 and 135,473.28
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Solution
The fourth proportional to 226,113.48, 311,947.84 and 135,473.28 is: 186,899.95
Step by Step Solution
- Step 1: Write the proportion equation
226,113.48 : 311,947.84 = 135,473.28 : x - Step 2: Convert to fraction form
226,113.48/311,947.84 = 135,473.28/x - Step 3: Cross multiply
226,113.48x = 311,947.84 × 135,473.28 - Step 4: Simplify right side
226,113.48x = 42,260,597,073.72 - Step 5: Solve for x
x = 42,260,597,073.72/226,113.48 - Step 6: Final answer
x = 186,899.95
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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.