Finding the Fourth Proportional to 149,356.95, 206,112.49 and 82,288.95
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Solution
The fourth proportional to 149,356.95, 206,112.49 and 82,288.95 is: 113,558.70
Step by Step Solution
- Step 1: Write the proportion equation
149,356.95 : 206,112.49 = 82,288.95 : x - Step 2: Convert to fraction form
149,356.95/206,112.49 = 82,288.95/x - Step 3: Cross multiply
149,356.95x = 206,112.49 × 82,288.95 - Step 4: Simplify right side
149,356.95x = 16,960,780,383.99 - Step 5: Solve for x
x = 16,960,780,383.99/149,356.95 - Step 6: Final answer
x = 113,558.70
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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.