Finding the Fourth Proportional to 221,138.04, 304,929.33 and 149,393.49
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Solution
The fourth proportional to 221,138.04, 304,929.33 and 149,393.49 is: 206,000.09
Step by Step Solution
- Step 1: Write the proportion equation
221,138.04 : 304,929.33 = 149,393.49 : x - Step 2: Convert to fraction form
221,138.04/304,929.33 = 149,393.49/x - Step 3: Cross multiply
221,138.04x = 304,929.33 × 149,393.49 - Step 4: Simplify right side
221,138.04x = 45,554,456,812.06 - Step 5: Solve for x
x = 45,554,456,812.06/221,138.04 - Step 6: Final answer
x = 206,000.09
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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.