Finding the Fourth Proportional to 252,121.80, 347,866.98 and 143,201.90
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Solution
The fourth proportional to 252,121.80, 347,866.98 and 143,201.90 is: 197,583.92
Step by Step Solution
- Step 1: Write the proportion equation
252,121.80 : 347,866.98 = 143,201.90 : x - Step 2: Convert to fraction form
252,121.80/347,866.98 = 143,201.90/x - Step 3: Cross multiply
252,121.80x = 347,866.98 × 143,201.90 - Step 4: Simplify right side
252,121.80x = 49,815,212,483.26 - Step 5: Solve for x
x = 49,815,212,483.26/252,121.80 - Step 6: Final answer
x = 197,583.92
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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.