Finding the Fourth Proportional to 202,236.80, 303,355.20 and 139,251.20
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Solution
The fourth proportional to 202,236.80, 303,355.20 and 139,251.20 is: 208,876.80
Step by Step Solution
- Step 1: Write the proportion equation
202,236.80 : 303,355.20 = 139,251.20 : x - Step 2: Convert to fraction form
202,236.80/303,355.20 = 139,251.20/x - Step 3: Cross multiply
202,236.80x = 303,355.20 × 139,251.20 - Step 4: Simplify right side
202,236.80x = 42,242,575,626.24 - Step 5: Solve for x
x = 42,242,575,626.24/202,236.80 - Step 6: Final answer
x = 208,876.80
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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.