Finding the Fourth Proportional to 201,770.48, 278,432.50 and 115,724.99
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Solution
The fourth proportional to 201,770.48, 278,432.50 and 115,724.99 is: 159,694.31
Step by Step Solution
- Step 1: Write the proportion equation
201,770.48 : 278,432.50 = 115,724.99 : x - Step 2: Convert to fraction form
201,770.48/278,432.50 = 115,724.99/x - Step 3: Cross multiply
201,770.48x = 278,432.50 × 115,724.99 - Step 4: Simplify right side
201,770.48x = 32,221,598,278.18 - Step 5: Solve for x
x = 32,221,598,278.18/201,770.48 - Step 6: Final answer
x = 159,694.31
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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.