Finding the Fourth Proportional to 282,122.40, 389,329.38 and 154,798.96
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Solution
The fourth proportional to 282,122.40, 389,329.38 and 154,798.96 is: 213,622.82
Step by Step Solution
- Step 1: Write the proportion equation
282,122.40 : 389,329.38 = 154,798.96 : x - Step 2: Convert to fraction form
282,122.40/389,329.38 = 154,798.96/x - Step 3: Cross multiply
282,122.40x = 389,329.38 × 154,798.96 - Step 4: Simplify right side
282,122.40x = 60,267,783,121.44 - Step 5: Solve for x
x = 60,267,783,121.44/282,122.40 - Step 6: Final answer
x = 213,622.82
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.