Finding the Fourth Proportional to 308,081.80, 462,122.70 and 142,193.80
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Solution
The fourth proportional to 308,081.80, 462,122.70 and 142,193.80 is: 213,290.70
Step by Step Solution
- Step 1: Write the proportion equation
308,081.80 : 462,122.70 = 142,193.80 : x - Step 2: Convert to fraction form
308,081.80/462,122.70 = 142,193.80/x - Step 3: Cross multiply
308,081.80x = 462,122.70 × 142,193.80 - Step 4: Simplify right side
308,081.80x = 65,710,982,779.26 - Step 5: Solve for x
x = 65,710,982,779.26/308,081.80 - Step 6: Final answer
x = 213,290.70
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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.