Finding the Fourth Proportional to 197,450.13, 272,485.85 and 112,575.09
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Solution
The fourth proportional to 197,450.13, 272,485.85 and 112,575.09 is: 155,356.28
Step by Step Solution
- Step 1: Write the proportion equation
197,450.13 : 272,485.85 = 112,575.09 : x - Step 2: Convert to fraction form
197,450.13/272,485.85 = 112,575.09/x - Step 3: Cross multiply
197,450.13x = 272,485.85 × 112,575.09 - Step 4: Simplify right side
197,450.13x = 30,675,118,524.60 - Step 5: Solve for x
x = 30,675,118,524.60/197,450.13 - Step 6: Final answer
x = 155,356.28
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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.