Finding the Fourth Proportional to 354,857.80, 532,286.70 and 214,889.80
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Solution
The fourth proportional to 354,857.80, 532,286.70 and 214,889.80 is: 322,334.70
Step by Step Solution
- Step 1: Write the proportion equation
354,857.80 : 532,286.70 = 214,889.80 : x - Step 2: Convert to fraction form
354,857.80/532,286.70 = 214,889.80/x - Step 3: Cross multiply
354,857.80x = 532,286.70 × 214,889.80 - Step 4: Simplify right side
354,857.80x = 114,382,982,505.66 - Step 5: Solve for x
x = 114,382,982,505.66/354,857.80 - Step 6: Final answer
x = 322,334.70
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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.