Finding the Fourth Proportional to 259,717.60, 389,357.70 and 135,058.60
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Solution
The fourth proportional to 259,717.60, 389,357.70 and 135,058.60 is: 202,474.17
Step by Step Solution
- Step 1: Write the proportion equation
259,717.60 : 389,357.70 = 135,058.60 : x - Step 2: Convert to fraction form
259,717.60/389,357.70 = 135,058.60/x - Step 3: Cross multiply
259,717.60x = 389,357.70 × 135,058.60 - Step 4: Simplify right side
259,717.60x = 52,586,105,861.22 - Step 5: Solve for x
x = 52,586,105,861.22/259,717.60 - Step 6: Final answer
x = 202,474.17
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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.