Finding the Fourth Proportional to 259,645.44, 389,287.68 and 101,889.60
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Solution
The fourth proportional to 259,645.44, 389,287.68 and 101,889.60 is: 152,763.58
Step by Step Solution
- Step 1: Write the proportion equation
259,645.44 : 389,287.68 = 101,889.60 : x - Step 2: Convert to fraction form
259,645.44/389,287.68 = 101,889.60/x - Step 3: Cross multiply
259,645.44x = 389,287.68 × 101,889.60 - Step 4: Simplify right side
259,645.44x = 39,664,366,000.13 - Step 5: Solve for x
x = 39,664,366,000.13/259,645.44 - Step 6: Final answer
x = 152,763.58
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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.