Finding the Fourth Proportional to 268,181.58, 402,243.20 and 81,207.66
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Solution
The fourth proportional to 268,181.58, 402,243.20 and 81,207.66 is: 121,802.66
Step by Step Solution
- Step 1: Write the proportion equation
268,181.58 : 402,243.20 = 81,207.66 : x - Step 2: Convert to fraction form
268,181.58/402,243.20 = 81,207.66/x - Step 3: Cross multiply
268,181.58x = 402,243.20 × 81,207.66 - Step 4: Simplify right side
268,181.58x = 32,665,229,022.91 - Step 5: Solve for x
x = 32,665,229,022.91/268,181.58 - Step 6: Final answer
x = 121,802.66
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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.