Finding the Fourth Proportional to 261,444.93, 391,177.76 and 154,886.09
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Solution
The fourth proportional to 261,444.93, 391,177.76 and 154,886.09 is: 231,742.84
Step by Step Solution
- Step 1: Write the proportion equation
261,444.93 : 391,177.76 = 154,886.09 : x - Step 2: Convert to fraction form
261,444.93/391,177.76 = 154,886.09/x - Step 3: Cross multiply
261,444.93x = 391,177.76 × 154,886.09 - Step 4: Simplify right side
261,444.93x = 60,587,991,011.04 - Step 5: Solve for x
x = 60,587,991,011.04/261,444.93 - Step 6: Final answer
x = 231,742.84
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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.