Finding the Fourth Proportional to 324,857.91, 486,959.63 and 135,423.07
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Solution
The fourth proportional to 324,857.91, 486,959.63 and 135,423.07 is: 202,998.19
Step by Step Solution
- Step 1: Write the proportion equation
324,857.91 : 486,959.63 = 135,423.07 : x - Step 2: Convert to fraction form
324,857.91/486,959.63 = 135,423.07/x - Step 3: Cross multiply
324,857.91x = 486,959.63 × 135,423.07 - Step 4: Simplify right side
324,857.91x = 65,945,567,383.55 - Step 5: Solve for x
x = 65,945,567,383.55/324,857.91 - Step 6: Final answer
x = 202,998.19
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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.