Finding the Fourth Proportional to 197,128.40, 295,692.60 and 84,862.40
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Solution
The fourth proportional to 197,128.40, 295,692.60 and 84,862.40 is: 127,293.60
Step by Step Solution
- Step 1: Write the proportion equation
197,128.40 : 295,692.60 = 84,862.40 : x - Step 2: Convert to fraction form
197,128.40/295,692.60 = 84,862.40/x - Step 3: Cross multiply
197,128.40x = 295,692.60 × 84,862.40 - Step 4: Simplify right side
197,128.40x = 25,093,183,698.24 - Step 5: Solve for x
x = 25,093,183,698.24/197,128.40 - Step 6: Final answer
x = 127,293.60
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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.