Finding the Fourth Proportional to 194,425.12, 290,944.74 and 134,465.74
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Solution
The fourth proportional to 194,425.12, 290,944.74 and 134,465.74 is: 201,219.37
Step by Step Solution
- Step 1: Write the proportion equation
194,425.12 : 290,944.74 = 134,465.74 : x - Step 2: Convert to fraction form
194,425.12/290,944.74 = 134,465.74/x - Step 3: Cross multiply
194,425.12x = 290,944.74 × 134,465.74 - Step 4: Simplify right side
194,425.12x = 39,122,099,763.21 - Step 5: Solve for x
x = 39,122,099,763.21/194,425.12 - Step 6: Final answer
x = 201,219.37
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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.