Finding the Fourth Proportional to 203,550.09, 280,903.61 and 112,903.09
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Solution
The fourth proportional to 203,550.09, 280,903.61 and 112,903.09 is: 155,808.75
Step by Step Solution
- Step 1: Write the proportion equation
203,550.09 : 280,903.61 = 112,903.09 : x - Step 2: Convert to fraction form
203,550.09/280,903.61 = 112,903.09/x - Step 3: Cross multiply
203,550.09x = 280,903.61 × 112,903.09 - Step 4: Simplify right side
203,550.09x = 31,714,885,561.15 - Step 5: Solve for x
x = 31,714,885,561.15/203,550.09 - Step 6: Final answer
x = 155,808.75
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.