Finding the Fourth Proportional to 338,971.43, 508,486.70 and 111,198.75
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Solution
The fourth proportional to 338,971.43, 508,486.70 and 111,198.75 is: 166,807.82
Step by Step Solution
- Step 1: Write the proportion equation
338,971.43 : 508,486.70 = 111,198.75 : x - Step 2: Convert to fraction form
338,971.43/508,486.70 = 111,198.75/x - Step 3: Cross multiply
338,971.43x = 508,486.70 × 111,198.75 - Step 4: Simplify right side
338,971.43x = 56,543,085,431.63 - Step 5: Solve for x
x = 56,543,085,431.63/338,971.43 - Step 6: Final answer
x = 166,807.82
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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.