Finding the Fourth Proportional to 201,617.28, 278,229.63 and 110,971.29
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Solution
The fourth proportional to 201,617.28, 278,229.63 and 110,971.29 is: 153,139.17
Step by Step Solution
- Step 1: Write the proportion equation
201,617.28 : 278,229.63 = 110,971.29 : x - Step 2: Convert to fraction form
201,617.28/278,229.63 = 110,971.29/x - Step 3: Cross multiply
201,617.28x = 278,229.63 × 110,971.29 - Step 4: Simplify right side
201,617.28x = 30,875,501,634.31 - Step 5: Solve for x
x = 30,875,501,634.31/201,617.28 - Step 6: Final answer
x = 153,139.17
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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.