Finding the Fourth Proportional to 420,020.40, 629,866.80 and 183,201.60
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Solution
The fourth proportional to 420,020.40, 629,866.80 and 183,201.60 is: 274,730.95
Step by Step Solution
- Step 1: Write the proportion equation
420,020.40 : 629,866.80 = 183,201.60 : x - Step 2: Convert to fraction form
420,020.40/629,866.80 = 183,201.60/x - Step 3: Cross multiply
420,020.40x = 629,866.80 × 183,201.60 - Step 4: Simplify right side
420,020.40x = 115,392,605,546.88 - Step 5: Solve for x
x = 115,392,605,546.88/420,020.40 - Step 6: Final answer
x = 274,730.95
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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.