Finding the Fourth Proportional to 226,578.28, 312,550.50 and 135,910.12
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Solution
The fourth proportional to 226,578.28, 312,550.50 and 135,910.12 is: 187,479.47
Step by Step Solution
- Step 1: Write the proportion equation
226,578.28 : 312,550.50 = 135,910.12 : x - Step 2: Convert to fraction form
226,578.28/312,550.50 = 135,910.12/x - Step 3: Cross multiply
226,578.28x = 312,550.50 × 135,910.12 - Step 4: Simplify right side
226,578.28x = 42,478,775,961.06 - Step 5: Solve for x
x = 42,478,775,961.06/226,578.28 - Step 6: Final answer
x = 187,479.47
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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.