Finding the Fourth Proportional to 289,212.36, 433,657.60 and 89,476.08
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Solution
The fourth proportional to 289,212.36, 433,657.60 and 89,476.08 is: 134,164.33
Step by Step Solution
- Step 1: Write the proportion equation
289,212.36 : 433,657.60 = 89,476.08 : x - Step 2: Convert to fraction form
289,212.36/433,657.60 = 89,476.08/x - Step 3: Cross multiply
289,212.36x = 433,657.60 × 89,476.08 - Step 4: Simplify right side
289,212.36x = 38,801,982,110.21 - Step 5: Solve for x
x = 38,801,982,110.21/289,212.36 - Step 6: Final answer
x = 134,164.33
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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.