Finding the Fourth Proportional to 149,390.40, 223,949.97 and 74,533.44
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Solution
The fourth proportional to 149,390.40, 223,949.97 and 74,533.44 is: 111,732.49
Step by Step Solution
- Step 1: Write the proportion equation
149,390.40 : 223,949.97 = 74,533.44 : x - Step 2: Convert to fraction form
149,390.40/223,949.97 = 74,533.44/x - Step 3: Cross multiply
149,390.40x = 223,949.97 × 74,533.44 - Step 4: Simplify right side
149,390.40x = 16,691,761,652.00 - Step 5: Solve for x
x = 16,691,761,652.00/149,390.40 - Step 6: Final answer
x = 111,732.49
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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.