Finding the Fourth Proportional to 358,911.36, 538,375.68 and 171,717.12
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Solution
The fourth proportional to 358,911.36, 538,375.68 and 171,717.12 is: 257,579.81
Step by Step Solution
- Step 1: Write the proportion equation
358,911.36 : 538,375.68 = 171,717.12 : x - Step 2: Convert to fraction form
358,911.36/538,375.68 = 171,717.12/x - Step 3: Cross multiply
358,911.36x = 538,375.68 × 171,717.12 - Step 4: Simplify right side
358,911.36x = 92,448,321,247.64 - Step 5: Solve for x
x = 92,448,321,247.64/358,911.36 - Step 6: Final answer
x = 257,579.81
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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.