Finding the Fourth Proportional to 259,794.40, 389,497.20 and 141,599.20
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Solution
The fourth proportional to 259,794.40, 389,497.20 and 141,599.20 is: 212,292.84
Step by Step Solution
- Step 1: Write the proportion equation
259,794.40 : 389,497.20 = 141,599.20 : x - Step 2: Convert to fraction form
259,794.40/389,497.20 = 141,599.20/x - Step 3: Cross multiply
259,794.40x = 389,497.20 × 141,599.20 - Step 4: Simplify right side
259,794.40x = 55,152,491,922.24 - Step 5: Solve for x
x = 55,152,491,922.24/259,794.40 - Step 6: Final answer
x = 212,292.84
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1.5x scale
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.