Finding the Fourth Proportional to 203,535.63, 280,867.70 and 112,885.09
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Solution
The fourth proportional to 203,535.63, 280,867.70 and 112,885.09 is: 155,775.06
Step by Step Solution
- Step 1: Write the proportion equation
203,535.63 : 280,867.70 = 112,885.09 : x - Step 2: Convert to fraction form
203,535.63/280,867.70 = 112,885.09/x - Step 3: Cross multiply
203,535.63x = 280,867.70 × 112,885.09 - Step 4: Simplify right side
203,535.63x = 31,705,775,172.64 - Step 5: Solve for x
x = 31,705,775,172.64/203,535.63 - Step 6: Final answer
x = 155,775.06
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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.