Finding the Fourth Proportional to 222,754.70, 334,132.05 and 128,276.30
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Solution
The fourth proportional to 222,754.70, 334,132.05 and 128,276.30 is: 192,414.45
Step by Step Solution
- Step 1: Write the proportion equation
222,754.70 : 334,132.05 = 128,276.30 : x - Step 2: Convert to fraction form
222,754.70/334,132.05 = 128,276.30/x - Step 3: Cross multiply
222,754.70x = 334,132.05 × 128,276.30 - Step 4: Simplify right side
222,754.70x = 42,861,223,085.42 - Step 5: Solve for x
x = 42,861,223,085.42/222,754.70 - Step 6: Final answer
x = 192,414.45
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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.