Finding the Fourth Proportional to 274,920.21, 379,394.48 and 154,088.46
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Solution
The fourth proportional to 274,920.21, 379,394.48 and 154,088.46 is: 212,644.65
Step by Step Solution
- Step 1: Write the proportion equation
274,920.21 : 379,394.48 = 154,088.46 : x - Step 2: Convert to fraction form
274,920.21/379,394.48 = 154,088.46/x - Step 3: Cross multiply
274,920.21x = 379,394.48 × 154,088.46 - Step 4: Simplify right side
274,920.21x = 58,460,311,540.92 - Step 5: Solve for x
x = 58,460,311,540.92/274,920.21 - Step 6: Final answer
x = 212,644.65
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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.