Finding the Fourth Proportional to 201,885.30, 278,577.36 and 115,839.54
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Solution
The fourth proportional to 201,885.30, 278,577.36 and 115,839.54 is: 159,844.59
Step by Step Solution
- Step 1: Write the proportion equation
201,885.30 : 278,577.36 = 115,839.54 : x - Step 2: Convert to fraction form
201,885.30/278,577.36 = 115,839.54/x - Step 3: Cross multiply
201,885.30x = 278,577.36 × 115,839.54 - Step 4: Simplify right side
201,885.30x = 32,270,273,236.81 - Step 5: Solve for x
x = 32,270,273,236.81/201,885.30 - Step 6: Final answer
x = 159,844.59
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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.