Finding the Fourth Proportional to 198,581.48, 297,704.80 and 86,177.02
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Solution
The fourth proportional to 198,581.48, 297,704.80 and 86,177.02 is: 129,192.88
Step by Step Solution
- Step 1: Write the proportion equation
198,581.48 : 297,704.80 = 86,177.02 : x - Step 2: Convert to fraction form
198,581.48/297,704.80 = 86,177.02/x - Step 3: Cross multiply
198,581.48x = 297,704.80 × 86,177.02 - Step 4: Simplify right side
198,581.48x = 25,655,312,503.70 - Step 5: Solve for x
x = 25,655,312,503.70/198,581.48 - Step 6: Final answer
x = 129,192.88
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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.