Finding the Fourth Proportional to 274,324.82, 411,445.64 and 74,660.76
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Solution
The fourth proportional to 274,324.82, 411,445.64 and 74,660.76 is: 111,979.82
Step by Step Solution
- Step 1: Write the proportion equation
274,324.82 : 411,445.64 = 74,660.76 : x - Step 2: Convert to fraction form
274,324.82/411,445.64 = 74,660.76/x - Step 3: Cross multiply
274,324.82x = 411,445.64 × 74,660.76 - Step 4: Simplify right side
274,324.82x = 30,718,843,807.78 - Step 5: Solve for x
x = 30,718,843,807.78/274,324.82 - Step 6: Final answer
x = 111,979.82
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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.