Finding the Fourth Proportional to 190,689.92, 263,159.12 and 115,223.84
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Solution
The fourth proportional to 190,689.92, 263,159.12 and 115,223.84 is: 159,013.15
Step by Step Solution
- Step 1: Write the proportion equation
190,689.92 : 263,159.12 = 115,223.84 : x - Step 2: Convert to fraction form
190,689.92/263,159.12 = 115,223.84/x - Step 3: Cross multiply
190,689.92x = 263,159.12 × 115,223.84 - Step 4: Simplify right side
190,689.92x = 30,322,204,337.42 - Step 5: Solve for x
x = 30,322,204,337.42/190,689.92 - Step 6: Final answer
x = 159,013.15
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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.