Finding the Fourth Proportional to 201,551.38, 278,141.91 and 110,905.09
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Solution
The fourth proportional to 201,551.38, 278,141.91 and 110,905.09 is: 153,049.58
Step by Step Solution
- Step 1: Write the proportion equation
201,551.38 : 278,141.91 = 110,905.09 : x - Step 2: Convert to fraction form
201,551.38/278,141.91 = 110,905.09/x - Step 3: Cross multiply
201,551.38x = 278,141.91 × 110,905.09 - Step 4: Simplify right side
201,551.38x = 30,847,353,561.32 - Step 5: Solve for x
x = 30,847,353,561.32/201,551.38 - Step 6: Final answer
x = 153,049.58
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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.