Finding the Fourth Proportional to 393,771.03, 543,177.58 and 248,525.20
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Solution
The fourth proportional to 393,771.03, 543,177.58 and 248,525.20 is: 342,821.85
Step by Step Solution
- Step 1: Write the proportion equation
393,771.03 : 543,177.58 = 248,525.20 : x - Step 2: Convert to fraction form
393,771.03/543,177.58 = 248,525.20/x - Step 3: Cross multiply
393,771.03x = 543,177.58 × 248,525.20 - Step 4: Simplify right side
393,771.03x = 134,993,314,173.29 - Step 5: Solve for x
x = 134,993,314,173.29/393,771.03 - Step 6: Final answer
x = 342,821.85
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1.5x scale
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.