Finding the Fourth Proportional to 194,195.92, 291,407.12 and 81,869.28
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Solution
The fourth proportional to 194,195.92, 291,407.12 and 81,869.28 is: 122,851.66
Step by Step Solution
- Step 1: Write the proportion equation
194,195.92 : 291,407.12 = 81,869.28 : x - Step 2: Convert to fraction form
194,195.92/291,407.12 = 81,869.28/x - Step 3: Cross multiply
194,195.92x = 291,407.12 × 81,869.28 - Step 4: Simplify right side
194,195.92x = 23,857,291,101.27 - Step 5: Solve for x
x = 23,857,291,101.27/194,195.92 - Step 6: Final answer
x = 122,851.66
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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.