Finding the Fourth Proportional to 201,643.63, 278,235.61 and 115,586.80
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Solution
The fourth proportional to 201,643.63, 278,235.61 and 115,586.80 is: 159,491.09
Step by Step Solution
- Step 1: Write the proportion equation
201,643.63 : 278,235.61 = 115,586.80 : x - Step 2: Convert to fraction form
201,643.63/278,235.61 = 115,586.80/x - Step 3: Cross multiply
201,643.63x = 278,235.61 × 115,586.80 - Step 4: Simplify right side
201,643.63x = 32,160,362,821.39 - Step 5: Solve for x
x = 32,160,362,821.39/201,643.63 - Step 6: Final answer
x = 159,491.09
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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.