Finding the Fourth Proportional to 281,285.75, 388,177.98 and 153,958.61
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Solution
The fourth proportional to 281,285.75, 388,177.98 and 153,958.61 is: 212,464.88
Step by Step Solution
- Step 1: Write the proportion equation
281,285.75 : 388,177.98 = 153,958.61 : x - Step 2: Convert to fraction form
281,285.75/388,177.98 = 153,958.61/x - Step 3: Cross multiply
281,285.75x = 388,177.98 × 153,958.61 - Step 4: Simplify right side
281,285.75x = 59,763,342,233.41 - Step 5: Solve for x
x = 59,763,342,233.41/281,285.75 - Step 6: Final answer
x = 212,464.88
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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.