Finding the Fourth Proportional to 286,727.70, 430,091.55 and 269,231.70
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Solution
The fourth proportional to 286,727.70, 430,091.55 and 269,231.70 is: 403,847.55
Step by Step Solution
- Step 1: Write the proportion equation
286,727.70 : 430,091.55 = 269,231.70 : x - Step 2: Convert to fraction form
286,727.70/430,091.55 = 269,231.70/x - Step 3: Cross multiply
286,727.70x = 430,091.55 × 269,231.70 - Step 4: Simplify right side
286,727.70x = 115,794,279,162.14 - Step 5: Solve for x
x = 115,794,279,162.14/286,727.70 - Step 6: Final answer
x = 403,847.55
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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.