Finding the Fourth Proportional to 200,959.59, 277,267.42 and 129,381.05
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Solution
The fourth proportional to 200,959.59, 277,267.42 and 129,381.05 is: 178,509.28
Step by Step Solution
- Step 1: Write the proportion equation
200,959.59 : 277,267.42 = 129,381.05 : x - Step 2: Convert to fraction form
200,959.59/277,267.42 = 129,381.05/x - Step 3: Cross multiply
200,959.59x = 277,267.42 × 129,381.05 - Step 4: Simplify right side
200,959.59x = 35,873,150,785.29 - Step 5: Solve for x
x = 35,873,150,785.29/200,959.59 - Step 6: Final answer
x = 178,509.28
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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.