Finding the Fourth Proportional to 201,798.42, 278,322.87 and 125,274.30
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Solution
The fourth proportional to 201,798.42, 278,322.87 and 125,274.30 is: 172,779.86
Step by Step Solution
- Step 1: Write the proportion equation
201,798.42 : 278,322.87 = 125,274.30 : x - Step 2: Convert to fraction form
201,798.42/278,322.87 = 125,274.30/x - Step 3: Cross multiply
201,798.42x = 278,322.87 × 125,274.30 - Step 4: Simplify right side
201,798.42x = 34,866,702,713.24 - Step 5: Solve for x
x = 34,866,702,713.24/201,798.42 - Step 6: Final answer
x = 172,779.86
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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.