Finding the Fourth Proportional to 198,556.06, 297,855.88 and 86,159.02
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Solution
The fourth proportional to 198,556.06, 297,855.88 and 86,159.02 is: 129,247.99
Step by Step Solution
- Step 1: Write the proportion equation
198,556.06 : 297,855.88 = 86,159.02 : x - Step 2: Convert to fraction form
198,556.06/297,855.88 = 86,159.02/x - Step 3: Cross multiply
198,556.06x = 297,855.88 × 86,159.02 - Step 4: Simplify right side
198,556.06x = 25,662,970,722.04 - Step 5: Solve for x
x = 25,662,970,722.04/198,556.06 - Step 6: Final answer
x = 129,247.99
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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.