Finding the Fourth Proportional to 221,143.54, 304,936.92 and 149,398.99
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Solution
The fourth proportional to 221,143.54, 304,936.92 and 149,398.99 is: 206,007.68
Step by Step Solution
- Step 1: Write the proportion equation
221,143.54 : 304,936.92 = 149,398.99 : x - Step 2: Convert to fraction form
221,143.54/304,936.92 = 149,398.99/x - Step 3: Cross multiply
221,143.54x = 304,936.92 × 149,398.99 - Step 4: Simplify right side
221,143.54x = 45,557,267,861.71 - Step 5: Solve for x
x = 45,557,267,861.71/221,143.54 - Step 6: Final answer
x = 206,007.68
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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.