Finding the Fourth Proportional to 281,365.68, 388,294.11 and 154,043.94
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Solution
The fourth proportional to 281,365.68, 388,294.11 and 154,043.94 is: 212,585.82
Step by Step Solution
- Step 1: Write the proportion equation
281,365.68 : 388,294.11 = 154,043.94 : x - Step 2: Convert to fraction form
281,365.68/388,294.11 = 154,043.94/x - Step 3: Cross multiply
281,365.68x = 388,294.11 × 154,043.94 - Step 4: Simplify right side
281,365.68x = 59,814,354,583.19 - Step 5: Solve for x
x = 59,814,354,583.19/281,365.68 - Step 6: Final answer
x = 212,585.82
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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.