Finding the Fourth Proportional to 259,631.80, 389,447.70 and 224,639.80
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Solution
The fourth proportional to 259,631.80, 389,447.70 and 224,639.80 is: 336,959.70
Step by Step Solution
- Step 1: Write the proportion equation
259,631.80 : 389,447.70 = 224,639.80 : x - Step 2: Convert to fraction form
259,631.80/389,447.70 = 224,639.80/x - Step 3: Cross multiply
259,631.80x = 389,447.70 × 224,639.80 - Step 4: Simplify right side
259,631.80x = 87,485,453,438.46 - Step 5: Solve for x
x = 87,485,453,438.46/259,631.80 - Step 6: Final answer
x = 336,959.70
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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.