Finding the Fourth Proportional to 168,978.88, 252,257.63 and 157,169.08
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Solution
The fourth proportional to 168,978.88, 252,257.63 and 157,169.08 is: 234,627.54
Step by Step Solution
- Step 1: Write the proportion equation
168,978.88 : 252,257.63 = 157,169.08 : x - Step 2: Convert to fraction form
168,978.88/252,257.63 = 157,169.08/x - Step 3: Cross multiply
168,978.88x = 252,257.63 × 157,169.08 - Step 4: Simplify right side
168,978.88x = 39,647,099,630.08 - Step 5: Solve for x
x = 39,647,099,630.08/168,978.88 - Step 6: Final answer
x = 234,627.54
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.