Finding the Fourth Proportional to 248,619.80, 372,929.70 and 209,739.80
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Solution
The fourth proportional to 248,619.80, 372,929.70 and 209,739.80 is: 314,609.70
Step by Step Solution
- Step 1: Write the proportion equation
248,619.80 : 372,929.70 = 209,739.80 : x - Step 2: Convert to fraction form
248,619.80/372,929.70 = 209,739.80/x - Step 3: Cross multiply
248,619.80x = 372,929.70 × 209,739.80 - Step 4: Simplify right side
248,619.80x = 78,218,200,692.06 - Step 5: Solve for x
x = 78,218,200,692.06/248,619.80 - Step 6: Final answer
x = 314,609.70
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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.