Finding the Fourth Proportional to 303,425.60, 455,138.40 and 277,837.70
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Solution
The fourth proportional to 303,425.60, 455,138.40 and 277,837.70 is: 416,756.55
Step by Step Solution
- Step 1: Write the proportion equation
303,425.60 : 455,138.40 = 277,837.70 : x - Step 2: Convert to fraction form
303,425.60/455,138.40 = 277,837.70/x - Step 3: Cross multiply
303,425.60x = 455,138.40 × 277,837.70 - Step 4: Simplify right side
303,425.60x = 126,454,606,237.68 - Step 5: Solve for x
x = 126,454,606,237.68/303,425.60 - Step 6: Final answer
x = 416,756.55
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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.