Finding the Fourth Proportional to 259,908.44, 389,548.70 and 126,588.92
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Solution
The fourth proportional to 259,908.44, 389,548.70 and 126,588.92 is: 189,730.47
Step by Step Solution
- Step 1: Write the proportion equation
259,908.44 : 389,548.70 = 126,588.92 : x - Step 2: Convert to fraction form
259,908.44/389,548.70 = 126,588.92/x - Step 3: Cross multiply
259,908.44x = 389,548.70 × 126,588.92 - Step 4: Simplify right side
259,908.44x = 49,312,549,220.40 - Step 5: Solve for x
x = 49,312,549,220.40/259,908.44 - Step 6: Final answer
x = 189,730.47
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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.