Finding the Fourth Proportional to 186,965.63, 280,448.90 and 74,654.99
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Solution
The fourth proportional to 186,965.63, 280,448.90 and 74,654.99 is: 111,982.67
Step by Step Solution
- Step 1: Write the proportion equation
186,965.63 : 280,448.90 = 74,654.99 : x - Step 2: Convert to fraction form
186,965.63/280,448.90 = 74,654.99/x - Step 3: Cross multiply
186,965.63x = 280,448.90 × 74,654.99 - Step 4: Simplify right side
186,965.63x = 20,936,909,825.01 - Step 5: Solve for x
x = 20,936,909,825.01/186,965.63 - Step 6: Final answer
x = 111,982.67
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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.