Finding the Fourth Proportional to 154,285.91, 231,456.32 and 54,503.99
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Solution
The fourth proportional to 154,285.91, 231,456.32 and 54,503.99 is: 81,765.68
Step by Step Solution
- Step 1: Write the proportion equation
154,285.91 : 231,456.32 = 54,503.99 : x - Step 2: Convert to fraction form
154,285.91/231,456.32 = 54,503.99/x - Step 3: Cross multiply
154,285.91x = 231,456.32 × 54,503.99 - Step 4: Simplify right side
154,285.91x = 12,615,292,678.20 - Step 5: Solve for x
x = 12,615,292,678.20/154,285.91 - Step 6: Final answer
x = 81,765.68
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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.