Finding the Fourth Proportional to 379,432.24, 569,170.64 and 142,776.97
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Solution
The fourth proportional to 379,432.24, 569,170.64 and 142,776.97 is: 214,173.84
Step by Step Solution
- Step 1: Write the proportion equation
379,432.24 : 569,170.64 = 142,776.97 : x - Step 2: Convert to fraction form
379,432.24/569,170.64 = 142,776.97/x - Step 3: Cross multiply
379,432.24x = 569,170.64 × 142,776.97 - Step 4: Simplify right side
379,432.24x = 81,264,458,678.28 - Step 5: Solve for x
x = 81,264,458,678.28/379,432.24 - Step 6: Final answer
x = 214,173.84
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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.