Finding the Fourth Proportional to 248,276.70, 372,415.05 and 129,984.30
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Solution
The fourth proportional to 248,276.70, 372,415.05 and 129,984.30 is: 194,976.45
Step by Step Solution
- Step 1: Write the proportion equation
248,276.70 : 372,415.05 = 129,984.30 : x - Step 2: Convert to fraction form
248,276.70/372,415.05 = 129,984.30/x - Step 3: Cross multiply
248,276.70x = 372,415.05 × 129,984.30 - Step 4: Simplify right side
248,276.70x = 48,408,109,583.72 - Step 5: Solve for x
x = 48,408,109,583.72/248,276.70 - Step 6: Final answer
x = 194,976.45
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Similar ratio
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1.5x scale
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.