Finding the Fourth Proportional to 259,623.68, 389,201.28 and 119,310.08
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Solution
The fourth proportional to 259,623.68, 389,201.28 and 119,310.08 is: 178,857.47
Step by Step Solution
- Step 1: Write the proportion equation
259,623.68 : 389,201.28 = 119,310.08 : x - Step 2: Convert to fraction form
259,623.68/389,201.28 = 119,310.08/x - Step 3: Cross multiply
259,623.68x = 389,201.28 × 119,310.08 - Step 4: Simplify right side
259,623.68x = 46,435,635,852.90 - Step 5: Solve for x
x = 46,435,635,852.90/259,623.68 - Step 6: Final answer
x = 178,857.47
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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.