Finding the Fourth Proportional to 213,450.14, 320,354.81 and 106,802.09
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Solution
The fourth proportional to 213,450.14, 320,354.81 and 106,802.09 is: 160,292.99
Step by Step Solution
- Step 1: Write the proportion equation
213,450.14 : 320,354.81 = 106,802.09 : x - Step 2: Convert to fraction form
213,450.14/320,354.81 = 106,802.09/x - Step 3: Cross multiply
213,450.14x = 320,354.81 × 106,802.09 - Step 4: Simplify right side
213,450.14x = 34,214,561,113.77 - Step 5: Solve for x
x = 34,214,561,113.77/213,450.14 - Step 6: Final answer
x = 160,292.99
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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.