Finding the Fourth Proportional to 178,986.88, 246,981.44 and 143,163.84
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Solution
The fourth proportional to 178,986.88, 246,981.44 and 143,163.84 is: 197,549.74
Step by Step Solution
- Step 1: Write the proportion equation
178,986.88 : 246,981.44 = 143,163.84 : x - Step 2: Convert to fraction form
178,986.88/246,981.44 = 143,163.84/x - Step 3: Cross multiply
178,986.88x = 246,981.44 × 143,163.84 - Step 4: Simplify right side
178,986.88x = 35,358,811,359.13 - Step 5: Solve for x
x = 35,358,811,359.13/178,986.88 - Step 6: Final answer
x = 197,549.74
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1.5x scale
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.