Finding the Fourth Proportional to 213,622.36, 320,430.06 and 87,234.84
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Solution
The fourth proportional to 213,622.36, 320,430.06 and 87,234.84 is: 130,850.84
Step by Step Solution
- Step 1: Write the proportion equation
213,622.36 : 320,430.06 = 87,234.84 : x - Step 2: Convert to fraction form
213,622.36/320,430.06 = 87,234.84/x - Step 3: Cross multiply
213,622.36x = 320,430.06 × 87,234.84 - Step 4: Simplify right side
213,622.36x = 27,952,665,015.29 - Step 5: Solve for x
x = 27,952,665,015.29/213,622.36 - Step 6: Final answer
x = 130,850.84
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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.