Finding the Fourth Proportional to 202,351.23, 279,245.11 and 111,707.31
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Solution
The fourth proportional to 202,351.23, 279,245.11 and 111,707.31 is: 154,156.32
Step by Step Solution
- Step 1: Write the proportion equation
202,351.23 : 279,245.11 = 111,707.31 : x - Step 2: Convert to fraction form
202,351.23/279,245.11 = 111,707.31/x - Step 3: Cross multiply
202,351.23x = 279,245.11 × 111,707.31 - Step 4: Simplify right side
202,351.23x = 31,193,720,068.75 - Step 5: Solve for x
x = 31,193,720,068.75/202,351.23 - Step 6: Final answer
x = 154,156.32
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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.