Finding the Fourth Proportional to 219,957.60, 303,548.20 and 129,296.92
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Solution
The fourth proportional to 219,957.60, 303,548.20 and 129,296.92 is: 178,433.70
Step by Step Solution
- Step 1: Write the proportion equation
219,957.60 : 303,548.20 = 129,296.92 : x - Step 2: Convert to fraction form
219,957.60/303,548.20 = 129,296.92/x - Step 3: Cross multiply
219,957.60x = 303,548.20 × 129,296.92 - Step 4: Simplify right side
219,957.60x = 39,247,847,331.54 - Step 5: Solve for x
x = 39,247,847,331.54/219,957.60 - Step 6: Final answer
x = 178,433.70
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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.