Finding the Fourth Proportional to 259,902.73, 389,828.04 and 126,874.81
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Solution
The fourth proportional to 259,902.73, 389,828.04 and 126,874.81 is: 190,299.50
Step by Step Solution
- Step 1: Write the proportion equation
259,902.73 : 389,828.04 = 126,874.81 : x - Step 2: Convert to fraction form
259,902.73/389,828.04 = 126,874.81/x - Step 3: Cross multiply
259,902.73x = 389,828.04 × 126,874.81 - Step 4: Simplify right side
259,902.73x = 49,459,358,507.67 - Step 5: Solve for x
x = 49,459,358,507.67/259,902.73 - Step 6: Final answer
x = 190,299.50
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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.