Finding the Fourth Proportional to 307,689.09, 461,529.92 and 79,964.54
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Solution
The fourth proportional to 307,689.09, 461,529.92 and 79,964.54 is: 119,945.84
Step by Step Solution
- Step 1: Write the proportion equation
307,689.09 : 461,529.92 = 79,964.54 : x - Step 2: Convert to fraction form
307,689.09/461,529.92 = 79,964.54/x - Step 3: Cross multiply
307,689.09x = 461,529.92 × 79,964.54 - Step 4: Simplify right side
307,689.09x = 36,906,025,041.56 - Step 5: Solve for x
x = 36,906,025,041.56/307,689.09 - Step 6: Final answer
x = 119,945.84
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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.