Finding the Fourth Proportional to 438,067.36, 657,106.26 and 171,953.20
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Solution
The fourth proportional to 438,067.36, 657,106.26 and 171,953.20 is: 257,931.85
Step by Step Solution
- Step 1: Write the proportion equation
438,067.36 : 657,106.26 = 171,953.20 : x - Step 2: Convert to fraction form
438,067.36/657,106.26 = 171,953.20/x - Step 3: Cross multiply
438,067.36x = 657,106.26 × 171,953.20 - Step 4: Simplify right side
438,067.36x = 112,991,524,147.03 - Step 5: Solve for x
x = 112,991,524,147.03/438,067.36 - Step 6: Final answer
x = 257,931.85
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.