Finding the Fourth Proportional to 281,045.53, 421,734.35 and 103,677.09
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Solution
The fourth proportional to 281,045.53, 421,734.35 and 103,677.09 is: 155,576.89
Step by Step Solution
- Step 1: Write the proportion equation
281,045.53 : 421,734.35 = 103,677.09 : x - Step 2: Convert to fraction form
281,045.53/421,734.35 = 103,677.09/x - Step 3: Cross multiply
281,045.53x = 421,734.35 × 103,677.09 - Step 4: Simplify right side
281,045.53x = 43,724,190,161.04 - Step 5: Solve for x
x = 43,724,190,161.04/281,045.53 - Step 6: Final answer
x = 155,576.89
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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.